Trisha M. Duff


Professional Experience
Admitted to the practice of Law
The State of Ohio
Admitted to the practice of law
The United States District Court for the Southern District of Ohio
1991-1999 and 2002-2013
Private Practice
Duff Law Offices
Former Assistant Prosecutor
The City of Vandalia
Former acting Judge
The Montgomery County Areas Courts, Western and Eastern Divisions
Former Magistrate
The Montgomery County Domestic Relations Court
Former Law Director
The City of Vandalia
Joined Bieser Greer

University of Dayton School of Law
J.D. -- Touche Ross Scholar Award Recipient
The Ohio State University
Bachelor of Science

For 25 years, Ms. Duff has devoted her practice to assisting people in the area of family law. She has extensive experience from both sides of the bench in divorce matters, dissolutions, custody matters and other situations unique to families in crisis. Ms. Duff further is experienced in handling juvenile law matters, estate planning and criminal matters.

Ms. Duff has completed all required training to allow her to act as a mediator for divorce actions, custody actions and other family law matters. This allows parties to save both time and money and avoid the uncertain outcome of submitting their cases to a Court, thus giving parties more control over their futures.

  • Matrindale Hubbell CV Rated
  • American Institue of Family Law

Professional Activities
  • • Ohio State Bar Association
  • • Dayton Bar Association – Certified Grievance Committee Member
  • • 2015 DBA Foundation Fellow
  • • 2015 American Institute of Family Law Attorneys “10 Best” Attorneys for Ohio
  • • Barrister in the Stanley Z. Greenberg Family Law Forum
  • • Past & Present Chairperson, Domestic Relations Committee, Dayton Bar Association
  • • Former Member, Montgomery County Criminal Justice Council, Subcommittee on Domestic Violence
  • • Family Law Mediator – has successfully completed all required training
Community Activities
  • • Greater Dayton Volunteer Lawyer's Project


Kathleen R. Kesting - Paralegal