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What makes Mary different from the rest?

With 35+ years of criminal defense experience, Mary Conn is THE attorney when it comes to successfully defending capital murder cases. You need an experienced child abuse lawyer with a proven history of getting results.

No matter what level of punishment you may be facing, get help today by speaking with an experienced Houston capital murder defense attorney.

Our Credentials

Harris County Criminal Lawyers Association
Award of Outstanding Service as President

AVVO Rating
Top Attorney Criminal Defense

Texas Criminal Defense Lawyers Association
Presidential Award for Outstanding Service in CLE

National Association of Criminal Defense Lawyers
Presidential Awards 1992-1993, 1994-1995

Martindale Hubbell Lawyer Ratings

Awarded in 2018


Criminal Defense Info

Mary E. Conn provides timely responses to all clients and works tirelessly to ensure your case receives the utmost attention and that you get the best possible result. It is important to contact our office as soon as possible, so that we can get to work. Evidence is often lost early on; witnesses change statements after law enforcement gets to them, and we work to avoid those important losses to your defense. Our firm will make sure you understand Texas criminal court proceedings and will prepare you for any court proceedings.


Capital murder is often the charge when one person commits murder for financial gain.

Our Process to Protect Your Freedom, Your Reputation, and Your Future

  • Our attorneys have years of experience in defense of domestic violence charges and employ defense strategies that will often result in the best possible outcome for your freedom and future options.
  • We understand the nuances of Texas state criminal law and will plan the best strategy available considering the circumstances of the alleged crime.
  • We are often able to prevent prosecutors from filing charges at all; in other situations, we will work to have your case dismissed or the charges reduced.
  • If necessary, we will take your case to trial to fight for a full acquittal on all charges. We are seasoned trial lawyers who will never sell you out or push you into a plea bargain simply to avoid going to court.
  • If the prosecutor’s case is less than air-tight, a strong defense can create a reasonable doubt of your innocence in the minds of the jurors that could result in a “not guilty” verdict.
  • The sooner we start advocating for you, the better the odds that you will beat the charges or obtain a less severe penalty.
  • At Mary E. Conn & Associates, we like to, and do, get these cases dismissed as soon as possible so that you can get on with your life.

The sooner we start advocating for you, the better the odds that you will beat the charges or obtain a less severe penalty.


Our Mission

We believe in the Constitution, the rights of the people to be protected against the government. We believe every client is an individual with specific interests, specific needs, and a specific best resolution. We believe in the client’s right to be informed, my duty to the client, the highest ethical standards, and the best practice.


CALL US TODAY 713-357-4190