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Matthew J. Mankey

  • Sole Practitioner







Mr. Mankey graduated from Benilde-St. Margaret’s High School in 1976.  He attended St. John's University where he attained a major in government and history with a minor in philosophy in 1980 but deferred graduation for a year to attend the University of Salzburg, in Austria. He earned a Master's Degree in International Affairs from the American University. During his studies at American University he attended the Instituto de Instruccion de Espanol in Cuernavaca, Mexico in 1983. In 1985 Mr. Mankey completed his Master's program which included a published thesis on the Nicaraguan Revolution. Mr. Mankey has worked as a Congressional Staff person and as a lobbyist on Capitol Hill.   He attended William Mitchell College of Law during which time he worked in the family law clinic and in the criminal division of the Hennepin County Attorney's Office drug prosecution team.  He graduated from law school with honors in 1992.  After graduating from law school Mr. Mankey practiced exclusively in the area of criminal defense.  Mr. Mankey has been admitted to the Minnesota State Bar since 1992 and the Federal Bar since 1993. He was accepted onto the Criminal Justice Panel in 1997 and has been appointed by the federal court to dozens of federal criminal cases since that time. In addition to his private practice he served as a contract public defender in Hennepin County in 2004-05 and in Anoka County in 2012. He was chosen to serve as a conciliation court judge in 1997 and has presided part-time since that time.  The location of Mankey Law Office has been in its current location in Golden Valley since 1992.

Areas Of Practice

  • Criminal Law 100%
  • Assault
  • Drug Violations
  • Federal Crimes
  • Firearm/Weapon Crimes
  • Robbery & Burglary
  • Sex Crimes

Bar Admissions

  • Minnesota, 1992
  • U.S. District Court District of Minnesota, 1993
  • U.S. Court of Appeals 8th Circuit, 1993


  • William Mitchell College of Law, St. Paul, Minnesota
    • J.D. - 1992
    • Honors: cum laude
    • Honors: With Honors
    • Honors: Family Law Clinic
  • St. John's University, Minnesota
    • B.A. - 1980
    • Major: Government
    • Major: History
    • Minor: Philosophy
  • Benilde-St. Margaret’s High School
    • 1976
  • American University
    • Major: International Affairs
  • University of Salzburg
  • Instituto de Instruccion de Espanol, Cuernavaca
    • 1983

Published Works

  • Sandinista Development Programs and the Contra War, University of Michigan Microfilms, International Development, 1979 - 1985
  • Child Sex Abuse and the Sixth Amendment, Bench and Bar Minnesota, October, 2020

Classes/ Seminars

  • Immigration Consequences of Criminal Convictions, National Immigration Lawyers Association, 2011 to 2012

Honors And Awards

  • Super Lawyer, 2003 - 2005, 2007
  • Super Lawyers 2020
  • Super Lawyers 2021

Professional Associations And Memberships

  • National Association of Criminal Defense Lawyers, Member, 1997 to 2013
  • Minnesota State Bar Association, Member, 1992 to 2012

Past Employment Positions

  • Congressman Bill Frenzel, Congressional Staffer, 1987 to 1988
  • Chwat Weigend Associates, Lobbyist, 1988 to 1989
  • Hennepin County Attorney's Office, Drug Prosecution Team, Criminal Division
  • Hennepin County, Contract Public Defender, 2004 to 2005
  • Anoka County, Contract Public Defender, 2012 to 2012