David A. Nachtigall, Attorney at Law, PLLC is a firm with a unique breadth and depth of experience. Our firm handles criminal cases of all degrees in both state and federal court, criminal investigations, white collar matters and internal investigations, and select civil litigation.

Criminal Defense

Defense lawyer representing individuals facing criminal charges as well as federal offenses statewide. 

DWI / Intoxication Crimes

Tried DWI cases to juries involving all forms of forensic evidence in DWI / Intoxication cases. 

White Collar Matters

Extensive experience handling civil and criminal white collar matters for individuals that are charged.

Appeal and Post-Conviction Remedies

Experience in written submissions to the court when there is no testimony from witnesses and no jury.

Clearing and Sealing Criminal Records

Whether it is a petition for expunction or a petition for nondisclosure, our law firm is experienced in clearing/sealing records.

Internal Investigations

Helping businesses and individuals build financial crimes cases in anticipation of civil litigation or a possible criminal prosecution.

Civil Litigation

First-chair civil trial experience and has handled a wide variety of civil litigation cases.


Get in touch with one of our expert attorneys today to see how we can help.

Criminal Law

Our firm represents individuals and businesses facing state and federal criminal charges and investigations at all levels, and in select civil matters.  David A. Nachtigall is a Houston criminal defense lawyer who has defended accused persons and corporations in state and federal courts for crimes ranging from misdemeanors (e.g., DWI, assault, and theft) to serious felonies (e.g., bank robbery, drug possession, aggravated assault, sexual assault, possession of child pornography, and environmental crimes).  Our firm represents clients at both the trial and appellate level.  In addition to criminal cases, the firm assists clients with probation violations, petitions for nondisclosure, and expunctions.

Many of the firm’s clients are professionals who have never been involved in the criminal justice system and likely never will be again. Our firm understands the fear and anxiety that accompany being charged with a crime and endeavors to empower its clients with a full understanding of the criminal justice system as it relates to their cases, and treats its clients with personal attention and compassion.


David A. Nachtigall, Attorney at Law, PLLC also represents individuals and business during the investigative stages of criminal proceedings.  We have successfully deterred law enforcement from filing charges by taking effective preemptive action including defense investigations, contact with law enforcement, and negotiations with prosecutors.

White Collar Matters

As a former white collar prosecutor, David has significant experience in white collar investigation and litigation.  David defends individuals and corporations in state and federal courts charged with financial crimes including aggregate theft and embezzlement, healthcare fraud, mortgage and insurance fraud, securities fraud, and money laundering.

David also provides consulting services and representation to companies seeking to develop civil or criminal cases involving theft or fraud.  David has assisted individuals and businesses in developing and preparing white collar criminal cases for prosecution.

Civil Litigation

Our firm also handles select civil matters with a focus on white collar cases and those in which there is a possibility of concurrent criminal litigation.  As true trial lawyers and experienced courtroom advocates, we are undaunted by the posturing and bullying that is an unfortunate characteristic in some civil litigation.  Not only are we effective in the “paper” portions of a civil suit, we are experienced and effective in front of judges and juries.

George A. Nachtigallof counsel, is a litigator with over 38 years of civil litigation experience and an assists in the firm’s civil matters.  George is a former Assistant United States attorney with the U.S. Department of Justice, senior litigator at Shell Oil Company, and Deputy Division Chief at the Harris County Attorney’s Office.