Federal drug charges move differently than state cases. The penalties are steeper, the sentencing rules are stricter, and the agents building the case — often the DEA or Homeland Security Investigations — may have been working it for months before you knew.

If you are under investigation or already charged in Houston, the exposure is real. A single drug quantity can trigger a mandatory minimum prison term that a judge cannot go below without a specific legal reason.

At Keith & Lorfing, we defend federal drug cases in the Southern District of Texas, Houston Division. Our team is led by a former Assistant U.S. Attorney who knows how these prosecutions are built — because he used to build them.

The earlier you have counsel, the more options you have. Speak with a Federal Criminal Defense Lawyer in Houston before you talk to agents, prosecutors, or anyone else about the case.

Federal drug charges we defend in Houston

Federal drug law reaches manufacturing, distribution, importation, and the agreements behind them. Most Houston federal drug cases are charged under a handful of statutes.

Federal controlled substances are divided into five schedules based on factors including accepted medical use and potential for abuse. The DEA’s drug scheduling guide explains how those classifications work and which substances fall within each schedule.

  • Manufacture and distribution — 21 U.S.C. § 841: The core federal drug statute. It covers making, distributing, or possessing a controlled substance with intent to distribute. Quantity drives the sentence.
  • Drug conspiracy — 21 U.S.C. § 846: An agreement between two or more people to commit a drug offense. You can be charged even if you never touched the drugs.
  • Importation — 21 U.S.C. §§ 952 and 960: Bringing a controlled substance into the United States. Common in a border district like the Southern District of Texas.
  • Continuing criminal enterprise — 21 U.S.C. § 848: The “kingpin” statute, aimed at people accused of leading a larger drug operation. It carries some of the harshest penalties in federal law.


Charges are often stacked — a distribution count, a conspiracy count, and sometimes a firearm count under 18 U.S.C. § 924(c) on top. If a gun is part of your case, see our Houston federal gun and weapons defense page.

Not sure which statute you are facing? Reach out to our team and we will help you read your paperwork.

Why federal drug charges are so serious

The biggest reason is the mandatory minimum. Under § 841, the weight of the drug can lock in a floor of 5 or 10 years in federal prison — before a judge considers anything else about you.

That floor is set by quantity, not by your role. A courier and an organizer can face the same starting number if the quantity is the same.

On top of the mandatory minimum sit the U.S. Sentencing Guidelines for federal drug offenses, which are advisory but still shape the outcome. Prior convictions, a firearm, or an alleged leadership role can push the exposure higher.

The consequences reach past prison. A federal drug conviction can bring:

  • Forfeiture: The government can move to seize cash, vehicles, and property it links to the alleged offense.
  • Immigration consequences: A drug conviction can lead to removal for non-citizens. If immigration status is a concern, our Houston federal immigration defense team can help.
  • Loss of rights and licensing: Convictions can affect firearm rights, professional licenses, and future employment.


At sentencing, you don’t just plead — you litigate the math. In a federal drug case that math starts with quantity — and quantity can be fought.

How we defend federal drug cases

There is no single defense to a federal drug charge. We build the strategy around the facts — how the investigation was run, what the government can actually prove, and where the sentencing exposure can be reduced.

  • Early, pre-indictment intervention: If agents are still investigating, getting involved now can shape the case before charges are filed. Once the government gets there first, you’re reacting instead of deciding.
  • Challenging the search and the stop: Traffic stops, warrants, and wiretaps all have legal limits. When agents cross them, we file suppression motions to keep that evidence out.
  • Fighting the drug quantity: Drug weight is the engine of a federal drug sentence, and the government’s number is not the last word. We scrutinize how the drugs were weighed and how much is attributed to you as “relevant conduct” — including amounts you never personally touched. Pulling that figure down can change the entire sentencing range.
  • Attacking conspiracy liability: In a § 846 case, the government must prove you knowingly joined an agreement. We push back on guilt-by-association and on what was reasonably foreseeable to you.
  • The safety valve — 18 U.S.C. § 3553(f): This provision can let a judge sentence below the mandatory minimum for certain lower-level, nonviolent defendants who qualify. We work to position eligible clients to use it.
  • Sentencing mitigation: Acceptance of responsibility, role reductions, and — when it is genuinely in your interest — cooperation can all lower the final number.


We handle the trial and the sentencing as two connected fights. For more on how the math works, read how federal sentences are calculated.

Every case is different, and no strategy fits all of them. Talk to a federal defense lawyer about what applies to yours.

If you think you are under federal drug investigation

Federal drug cases are often well underway before you feel them. What you do in the first days can protect your options — or shrink them.

Two early mistakes cost people the most.

  • Deleting or “cleaning up” anything. Deleting emails or documents doesn’t fix the problem — it creates a new one. Destroying records can add an obstruction charge that is often easier to prove than the drug case itself.
  • Putting your head in the sand. Ignoring it while the government keeps building only shrinks your options before you ever react.


If you fear a federal drug investigation, a few steps protect you:

  • Hire an experienced federal defense lawyer now — ideally before a subpoena or agents arrive, not a general practitioner.
  • Preserve everything. Never delete or alter records; evidence produced strategically through counsel can create leverage.
  • Keep government contact controlled. Let your lawyer make first contact, and never rely on an agent’s informal assurances.


Talk to our team before you make a move you cannot undo.

Why choose Keith & Lorfing

Federal drug cases reward experience on both sides of the courtroom. Our team has it.

  • A former federal prosecutor leads the team. Managing Partner Russell Lorfing is a former Assistant U.S. Attorney who prosecuted federal cases and has trained DEA, FBI, and IRS agents on evidence. He is admitted in the Southern District of Texas and was selected in 2024 as Co-Chair of the Federal Criminal Defense Committee for the Texas Criminal Defense Lawyers Association.
  • A retired federal judge of counsel. Hon. E. Scott Frost (Ret.) brings more than 30 years of federal courtroom experience to our defense team.
  • A seasoned trial partner. Founding Partner Trey Keith has spent 20-plus years defending the accused, with many “Not Guilty” verdicts.
  • Team backgrounds you want on your side. Our people include former federal prosecutors and defenders, former FBI agents, and IRS criminal investigators.


We represent clients in federal courts across the country, and we regularly appear in the Houston and Laredo divisions of the Southern District of Texas. Our team is drawn from the highest levels of the federal system — former federal prosecutors and defenders, former FBI agents, former IRS criminal investigators, and a retired federal judge. Past results do not guarantee any particular outcome in your case.

Contact our firm to speak with our federal defense team.

What to expect in a Southern District of Texas drug case

Houston federal drug cases are handled in the U.S. District Court for the Southern District of Texas, Houston Division, at the Bob Casey U.S. Courthouse on Rusk Street. Here is the general path.

  • Investigation: The DEA or HSI builds the case — often with informants, surveillance, or wiretaps — sometimes long before charges. If agents contact you, read what to do when federal agents want to talk first.
  • Charges and initial appearance: You are formally charged by complaint or indictment, then appear before a magistrate judge who decides detention or release.
  • Discovery and motions: We review the government’s evidence and file motions — including motions to suppress — to narrow or weaken the case.
  • Resolution: The case ends in a negotiated plea or a trial. If there is a conviction, sentencing is its own contested proceeding.


These cases don’t move fast on the surface, but underneath they’re moving the entire time — by the time it feels real, it’s usually much further along than you think. For a closer look at the last step, see what to expect at a federal sentencing hearing.

Talk to a Houston federal drug defense lawyer

A federal drug charge does not have to define what happens next. The sooner you have experienced counsel, the more room there may be to challenge the evidence, fight the quantity, and protect your future — depending on the facts of your case.

Keith & Lorfing defends federal drug cases in Houston and in federal courts across the country, led by a former federal prosecutor who knows how these cases are built. Learn more about our federal drug crime defense work, or start with our Houston federal criminal defense overview.

Schedule a confidential consultation with our team today.

Frequently asked questions

Is my drug charge federal or state?
It depends on who investigated and charged it. Cases involving the DEA or HSI, importation across the border, larger quantities, or multi-defendant conspiracies are often federal. Federal charges carry different — and usually harsher — sentencing rules than Texas state cases.

What are the mandatory minimums for federal drug charges?
Under 21 U.S.C. § 841, drug quantity can trigger a mandatory minimum of 5 or 10 years in federal prison. A judge generally cannot sentence below that floor unless a specific legal exception, like the safety valve or substantial assistance, applies.

Can I avoid the mandatory minimum?
Sometimes. The safety valve under 18 U.S.C. § 3553(f) can let a judge go below the mandatory minimum for certain nonviolent, lower-level defendants who meet its requirements. Whether you qualify depends on the facts of your case, so this is worth reviewing early.

What is a drug conspiracy charge?
A conspiracy under 21 U.S.C. § 846 is an agreement to commit a drug offense. You can be charged even if you were not caught with drugs — the government focuses on the agreement and what was reasonably foreseeable to you.

The DEA wants to talk to me. What should I do?
Talk to a lawyer before you talk to any agent. Anything you say can be used to build the case, and once the government moves first, you end up reacting instead of deciding. Getting counsel involved early can change the outcome.

Where will my federal drug case be heard in Houston?
In the U.S. District Court for the Southern District of Texas, Houston Division, at the Bob Casey U.S. Courthouse, 515 Rusk Street.

Can the drug quantity be challenged?
Yes. Because quantity drives the mandatory minimum and the Guidelines range, how the government measured and attributed the drugs is often a central fight — especially the “relevant conduct” it tries to pin on you, including drugs you never personally handled. Reducing the attributed amount can lower your exposure significantly.

Should I cooperate with the government? Maybe — but only after careful advice. Cooperation can reduce a sentence, but it carries real risks and consequences. That decision should never be made without a lawyer who has weighed it against every other option in your case.

Facing Federal Scrutiny?

Speak with our federal investigations team confidentially.

24/7 Crisis Line: 325-480-8100

Engagements nationwide

The Team

Former Federal Officials.
Strategic Crisis Counsel.

Russell Lorfing Headshot

Partner

Russell Lorfing Former Federal Prosecutor

  • Multi-award-winning trial lawyer and former federal prosecutor.
  • Has handled thousands of cases and lead counsel in numerous federal trials.
  • Served as an Assistant United States Attorney in the Northern District of
  • Texas and ran a human trafficking task force on Saipan.
  • Selected for the IRS’ Director’s Award for his prosecutorial accomplishments on financial investigations.
  • Recognized nationally for his work on white-collar investigations, bringing a wealth of experience to every case.

Read Bio

Brandi Young headshot

Partner

Brandi Young Former Federal Prosecutor

  • Retired from the Department of Justice as a career federal prosecutor before joining Keith & Lorfing.
  • Oversaw hundreds of federal investigations and served as lead counsel in over 30 federal jury trials.
  • Served as Supervisory Assistant United States Attorney in the Western District of Texas for nearly a decade.
  • Advises corporations and family offices on mitigation strategy and assists with internal compliance audits.

Read Bio

David Sloan headshot

Partner

David Sloan Former Federal Defender

He put his trial skills to work in the courtroom, prosecuting cases for Ellis County and the District Attorney’s office in Waxahachie. His skills were recognized by the trial lawyers around him, and he went from a misdemeanor prosecutor to lead counsel on murder trials in less than three years.

Read Bio

C Richard Baker headshot

Of Counsel

C. Richard Baker Former Assistant United States Attorney

Over five decades of courtroom and prosecutorial experience, including more than 30 years as an Assistant United States Attorney. A former U.S. Marine Corps officer and Vietnam veteran recognized for his trial experience in high-profile criminal matters. His command of federal criminal procedure gives clients a strategic advantage in grand jury proceedings and serious criminal exposure, with a particular passion for representing veterans.

Read Bio

Scott Frost headshot

Of Counsel

Hon. Scott Frost (Ret.) Former Federal Judge

Keith served as an FBI Special Agent in Lubbock for 27 years, focusing on human trafficking, crimes against children, and terrorism. Known for his collaborative leadership and relentless pursuit of justice, he now brings his expertise to our firm as Special Investigator.

Read Bio

Eric Gerard headshot

Of Counsel

Eric Gerard Former Federal Prosecutor

Keith served as an FBI Special Agent in Lubbock for 27 years, focusing on human trafficking, crimes against children, and terrorism. Known for his collaborative leadership and relentless pursuit of justice, he now brings his expertise to our firm as Special Investigator.

Read Bio

Chris Solid headshot

Of Counsel

Chris Solis Former Federal Prosecutor

Shane Chriesman headshot

Senior Associate

Shane Chriesman Former Federal Prosecutor

Javier Rocha headshot

Strategic Advisor

Javier Rocha Family Office Executive & Attorney

A family office executive and attorney with over a decade leading privately held businesses and executive teams across complex organizations. His career has focused on governance, investments, operations, and long-term stewardship for family office functions involving billions in assets, advising billion-dollar enterprises on internal investigations, investment diligence, and succession planning. Serves as Board of Directors Chairman for Heritage School and Assistant Scoutmaster for Troop 137.

Read Bio

Advisors & Investigators

Strategic Advisors & Federal Investigators

A bench of former federal agents, prosecutors, and senior advisors who provide investigative
depth and strategic counsel on the firm’s most complex matters.

Arthur Gonzales headshot

Strategic Investigator

Arthur Gonzales Former FBI Supervisory Special Agent

Nearly three decades with the FBI in leadership roles spanning counterterrorism, organized crime, and financial crimes. Recognized nationally and internationally for expertise in complex federal investigations, crisis management, and undercover operations, and served as an instructor at the FBI Academy. Provides strategic consulting and investigative support in federal criminal defense and white-collar investigations.

Read Bio

Michael Ornorff headshot

Strategic Investigator

Michael Orndorff Retired FBI Special Agent

Over two decades of federal investigative experience in terrorism, national security threats, and white-collar crime. Served as lead FBI Special Agent in the successful disruption of a terrorist plot involving Khalid Aldawsari, with deep expertise in sensitive investigations, complex evidence, and crisis response. Now advises on federal criminal defense, government investigations, and national security matters.

Read Bio

Travis Thorson headshot

Strategic Investigator

Travis Thorson Retired IRS-CI Special Agent & FBI Task Force Officer

Over two decades of federal investigative experience focused on complex financial crimes, money laundering, and organized criminal enterprises. A former IRS Special Agent whose forensic accounting work was critical in tracing illicit financial activity and building federal prosecutions. Provides strategic consulting for federal criminal defense, forensic accounting, and money laundering investigations.

Read Bio

Keith Quigley headshot

Special Investigator

Keith Quigley Former FBI Special Agent

Keith served as an FBI Special Agent in Lubbock for 27 years, focusing on human trafficking, crimes against children, and terrorism. Known for his collaborative leadership and relentless pursuit of justice, he now brings his expertise to our firm as Special Investigator.

Read Bio

Jennifer Sparks

Strategic Investigator

Jenifer Sparks Retired FBI Special Agent & Certified Profiler

Nearly three decades of FBI experience specializing in violent crime investigations, behavioral analysis, and crimes against children. Served as a Special Agent, Supervisory Special Agent Profiler, and Coordinator of the FBI’s Child Exploitation Task Force. Provides strategic consulting in federal criminal defense, human trafficking investigations, witness credibility assessment, and behavioral analysis.

Read Bio

Jennifer Cejpek headshot

Strategic Investigator

Jennifer Cejpek Former FBI Special Agent & Certified Fraud Examiner

More than two decades of federal investigative and intelligence experience specializing in healthcare fraud, financial crimes, and public corruption. As a former FBI Special Agent, she led complex federal investigations in close coordination with the Department of Justice. Background includes service as an Electronic Warfare and Intelligence Analyst in the U.S. Army and expertise in forensic interviewing. Advises on federal criminal defense, white-collar crime, and compliance matters.

Read Bio

William Luttrell headshot

Strategic Advisor

William Luttrell Financial Analyst & CPA

Financial analyst and Certified Public Accountant advising the firm on complex financial matters, forensic accounting, and the analysis of records central to federal white-collar and financial crime defense.

Read Bio

Recognition

Awards & Honors

Internal Revenue Service

IRS Director’s Award

For prosecutorial accomplishments on financial investigations

National Recognition

Multi-Award-Winning Trial Lawyers

Recognized nationally for white-collar investigations work

U.S. Department of Justice

Career Federal Prosecutors

Decades of distinguished service at the U.S. Department of Justice

Combined Team Experience

More Than 150 Years of Federal Law Enforcement Experience

Combined experience across DOJ, FBI, and the federal bench

Accolades & Accreditations

Client Reviews

What Our Clients Say

  • 5.0
  • Based on 361 verified Google reviews

I had a dear family friend retain Russell behind some very serious criminal charges. Russell listened and maintained contact through the whole process to assure he felt comfortable and in the loop. With Russell’s help, the case/investigation was dismissed and innocence ensured. We are so grateful for Russell’s dedication and professionalism. Would definitely recommend

  • Jaileen Ceballo
  • Google Review

Our personal experience could not have been better. These attorneys worked diligently and stayed in constant contact with us regarding the developments in our case. We always had the final say in any offers made by the prosecution. If I could only say one thing about them it would be “they listen” I always felt that my opinion was heard and considered. We discussed everything good and bad. When a decision was finally agreed on we felt it was the very best and truthfully an almost unbelievable outcome. I never want to find my family in the midst or subject of a criminal case ever again but if it happens my first and only call will be to this law firm. Big thanks to Russell and Chris on a job well done. And the office staff are simply amazing! Always polite, knowledgeable, and professional. Thank you all for treating us as family and working so hard to bring this case to a great conclusion.

  • Kathy Lindley
  • Google Review

I had a legal case that was difficult for me, and Russell Lorfing was very helpful throughout the process, advocating for me and working with me throughout the whole process. He was quite accessible as well whether by phone or email, and his staff was also quite helpful to reach out to. Russell was very systematic in going through the evidence that we had in building a case and gave pragmatic explanations on his views considering all the evidence. He also gave me the confidence several times during the process that the evidence for my case was sufficient in building a strong defense. I appreciate very much that he did not sugarcoat my situation and was patient in addressing concerns I had along the way. I strongly recommend Russell for anyone going through a difficult legal battle.

  • Michael Brown
  • Google Review

Russell was representing another client in federal court and my family saw him in action and we immediately fired our lawyer and hired Russell on the spot. One of the best decisions we’ve ever made. My brother’s case was very serious as he was looking at 40 years Fed for distribution of methamphetamine. Russell is very connected and well respected when it comes to law. He has great history in the courts with judges and prosecutors. Russell will not sell you a dream—he will shoot you straight and will not sugar coat anything. Russell was able to get my brother’s sentence cut in HALF to something way more reasonable.

  • Nick Mendez
  • Google Review

Russell Lorfing is THE guy you hire if you’ve been charged with a federal crime in West Texas. My fiancé was charged with a serious federal charge and we needed an experienced defense lawyer. He is one of the most honest lawyers you will find—he tells you exactly how things are and answers your questions honestly. He was looking at 13+ years, and now is looking at 5 years thanks to Mr. Lorfing, who did not rest until he was able to get him something better.

  • Verified Client
  • Google Review

My son is on State and Federal Parole. He was in a lot of trouble that could have landed him in prison for many years. Russell took my son’s case and has done a great job. Russell was able to get the state charges against my son dismissed—my son was looking at a minimum of twenty-five years. Russell also got my son a great plea deal with my son’s federal case. The Keith & Lorfing team treated us as if we were family. I recommend Keith & Lorfing to everybody.

  • Hazel Jefferson
  • Google Review

My entire experience with Keith and Lorfing has been great. I was facing the possibility of a 15 year MINIMUM sentence. Mr. Lorfing was very honest and made no promises but he reassured me that his main goal was to keep me out of prison. He did just that and I was able to sign for 6 years probation instead. I highly recommend Keith and Lorfing for anyone in need of a confident and experienced defense attorney.

  • Blanca Berumen
  • Google Review

My husband and I had a great experience working with Russell Lorfing. He managed to get my brother-in-law’s federal case dismissed in a short period of time. Mr. Lorfing is caring and is in constant contact with you and your family. He is a great federal defense lawyer. He is highly recommended!

  • Yoleny Palacios
  • Google Review

I wanted to express my deepest gratitude for the incredible support and expertise you provided to my family member. Your dedication and hard work made a world of difference during a challenging time. Thank you for going above and beyond to ensure the best possible outcome. We will strongly encourage anyone that is experiencing any case to consider Russell Lorfing Esq. to represent them.

  • Adrienne Holmes
  • Google Review

At the first of our situation we were scared and didn’t know where to begin. My wife made a phone call to Keith & Lorfing just to see where to begin—turned out to be the best decision! Russell and Chris from Keith & Lorfing were absolute professionals. They were the smartest and most prepared in the courtroom. Extremely impressed! They gave us our life back and could not thank them enough for what they did!

  • Aaron Wood
  • Google Review

I had the privilege of working with Keith and Lorfing for my criminal defense case, and I cannot recommend them highly enough. From the initial consultation to the courtroom proceedings, Keith and Lorfing demonstrated a deep understanding of the law and a commitment to protecting my rights. Thanks to their diligent efforts and sharp legal acumen, they successfully navigated the complexities of my case and ultimately secured a dismissal.

  • Adrien Strahan
  • Google Review

Russell was recommended to me by several people and we are so lucky to have found him! He was able to get a potential 7 year sentence down to only 9 months. Not to mention he and everyone at the law firm was so kind and helpful. It felt more like a family than a law firm. Would recommend to anyone who is in a tough spot.

  • Georgia Fuller
  • Google Review

A referral that I am very glad I was given. Not only did he meet the expectations I had heard from the referral, but exceeded them beyond measure. The process was simple and I was very comfortable and confident throughout. Mr. Lorfing and his associates are amazing and helpful. 10/10 recommended for their honesty and assistance.

  • Matthew Godinez
  • Google Review

Absolutely the best lawyer and staff I’ve ever met. He was more concerned with telling me the facts of where I stood legally than taking my case just for his financial gain. If I ever need any more legal help, I will go to their firm.

  • Kris Knight
  • Google Review

I am truly thankful for all you have done for me and my case. My family and I greatly appreciate everything you have done. I am greatly and truly impressed with the outcome. You were great at getting the answers for any question I had and explaining what everything meant. You are very outstanding and have done an amazing job. Thank you so much Russell!

  • Amy Rodriguez
  • Google Review

Russell did an amazing job. My case truly was a hail Mary. Lots of threading the needle and moving parts was an understatement. It’s a true testament that if someone wants to really change and will help him help themselves, he can and will.

  • Andy Dunlap
  • Google Review

Russell was an incredible advocate for my family. He regularly communicated with us and made us feel like we were his priority. My brother was looking at a mandatory minimum ten years in federal prison with a maximum possible sentence of life. He ended up pleading to a much less serious crime and serving less than a year. If you’ve been charged with a federal crime in West Texas, Russell Lorfing is THE ATTORNEY you hire.

  • Willie Kershaw
  • Google Review

After I was initially charged, I was swimming in a pool of despair. After my initial intake appointment there was a welcoming presence and a pedigree of honesty with my circumstances. Nothing was sugarcoated but they never made me feel like what I wanted was out of question. I couldn’t be more thrilled about the outcome—Keith literally reached into the depths of the justice system and pulled me out untarnished.

  • Williwill777
  • Google Review

Thank you Mr. Lorfing for your work getting my family member’s Federal MTR Dismissed. We know the time crunch made communication difficult so a special shout out to his legal assistant Wendi as well for getting back with me and reassuring our family things were getting done behind the scenes. We couldn’t have asked for a better outcome.

  • Brooklyn Martinez
  • Google Review

Mr. Lorfing is AMAZING! He is truly a miracle worker! My brother got into deep trouble, so we contacted the best lawyer to represent him. While most lawyers bring up payment options first, he listened to our story first. Mr. Lorfing resolved it before it got way worse and treated us like family. The Lorfing Law Firm is the way to go. He saved my brother and saved my family from heartaches.

  • MJ D
  • Google Review

Mr. Lorfing is different. He really cares about justice being served. He did a wonderful job with my son as his client. Mr. Lorfing doesn’t accept the usual outcomes of a case. He delves into all possibilities and outcomes for his clients and puts forth great effort when representing his clients. He is a very good lawyer.

  • Tammy Foster
  • Google Review

I had a complicated case and this man really did his job—and did it in no time. I’m so happy with his professionalism and empathy towards me. He really had my back. Thank you Mr. Lorfing.

  • Amy Kilough
  • Google Review

Confidential Consultation

Facing Federal Scrutiny? Act Early.

Early strategic intervention can significantly impact the course of a federal investigation. Contact our investigations team for a confidential consultation.