Photo: Mary E. Davis  

Mary Davis

- B.A. SUNY at Stony Brook, Stony Brook, NY 1980.
  Major in Psychology with a Minor in Math.

- J.D. Catholic University, Washington, DC 1984.

Admitted To Practice

  • Court of Appeals for the State of Maryland on June 21, 1984
  • U.S. District Court for the District of Columbia on March 4, 1985
  • District of Columbia Court of Appeals on March 20, 1985
  • U.S. District Court for the District of Maryland on June 20, 1986
  • U.S. Court of Appeals for the D.C. Circuit on May 18, 1987
  • Supreme Court of the United States on May 16, 1988
  • U.S. Court of Appeals for the Fourth Circuit on November 10, 1988

Mary Davis always provides a thoughtful and intelligent approach to presenting her client’s issues to the court. She has extensive experience as appellate counsel having served as counsel of record in the District of Columbia Circuit, as well as the Fourth and Fifth Circuits, and the District of Columbia Court of Appeals. In addition to serving as counsel of record, she is routinely retained by other criminal defense attorneys to prepare appellate briefs on their clients’ behalf. Ms. Davis has authored over 100 appellate briefs as well as numerous petitions to the United States Supreme Court. Her skill and appellate expertise have resulted in favorable decisions based on claims of Constitutional violations, prosecutorial misconduct, ineffective assistance of trial counsel, and illegal sentences.

Mary Davis is a recognized death penalty litigator and has represented death eligible defendants at both the district court level and on appeal. She has also assisted numerous clients in post-conviction proceedings.

Successful Resolutions of Cases Include:

United States v. Booker -
Case remanded for re-sentencing.

United States v. Brooks - Case remanded based on Brady violation.

United States v. BraxtonConviction reversed.

United States v. PoseyCase remanded for consideration of ineffective assistance of counsel claim leading to significant sentence reduction.

United States v. WoodConviction reversed.

United States v. DillonFederal charges dismissed.

United States v. BellConviction vacated.

United States v. MackPost-conviction relief granted.

United States v. SchmidtPost-conviction relief granted.

By virtue of her legal proficiency, coupled with a genuine concern for each of her clients, Ms. Davis is well respected by both the judiciary and the clients she serves.


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