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John Thomas Siegler

John Thomas Siegler

Practice Areas:

  • Commercial Litigation 30%
  • Collections 30%
  • Contracts 30%
  • Miscellaneous 10%


Mr. Siegler has a nationwide practice in the areas of civil litigation and collections. He is admitted in Minnesota, New York, and the District of Columbia. Mr. Siegler is also admitted in the Supreme Court of the United States as well as  the Federal  Appellate Courts in the United States and  has argued cases in the 3rd and 9th Circuit Court of Appeals.

For over 25 years, John has been helping corporations and commercial entities maximize their account receivable recoveries and reduce litigation exposure. The importance of understanding a client’s business  its performance in commerce and adjusts to aide efficiency and growth in the future is central to the expertise he brings to commercial litigation and collections.

John has been married to his wife Mary for 30 years and they have four children. John played college basketball and coached baseball, softball and basketball. The past four years John has been the varsity assistant and JV basketball coach at Cretin-Derham Hall High School. In 2017-18, he helped lead the team to the state tournament and was voted Minnesota High School Assistant Coach of the Year.



  • Catholic University of America, Columbus School of Law, Washington, District of Columbia
    • Honors: Law Review - Staff Member Two Year
  • Lemoyne College, Syracuse, New York
    • B.A. - 1980
    • Honors: Dean's List
    • Major: History

Bar Admission

  • New York, 1988
  • Minnesota, 2007
  • District of Columbia, 1989

Representative Clients

  • Ryder Truck Rental, Inc.
  • SS & C Technologies, Inc.
  • Corporate Technologies, LLC
  • Second City Transportation Leasing, LLC

Past Positions

  • Ask, LLP, Partner, 2001 to 2019


  • English