The firm traces its beginnings to 1982 when Paul F. Marso and William C. Michelson started their partnership as Marso and Michelson. Paul F. Marso. Paul F. Marso and William C. Michelson opened their first office in Richfield, Minnesota on January 2, 1982. They practiced there for seven years before moving to the Edinborough Corporate Center in Edina, Minnesota on May 1, 1989.  In April, 1999 the partners purchased their own office building at 3101 Irving Avenue South, Minneapolis, Minnesota in the Uptown area where they continue to practice law today.  In 2009, Patrick L. Hayes joined the law firm. 

The uptown office is situated in a friendly residential neighborhood close to Hennepin Avenue and Lake Calhoun.  Clients find that the office is easy to find and parking is readily available.  There is plenty of parking on the streets and there is a space where clients can park in the firm's lot.  For directions, try Google map of the office.

Paul Marso practices commercial litigation and probate of estates.  He has practiced in these areas for the majority of his career and represents many large corporations with an emphasis on the wholesale lumber industry and food vendor industry.  William Michelson practices in consumer law and business law.  William focuses much of his practice on consumer protection.  He is very knowledgeable in the Fair Debt Collection Practices Act and has appeared in Federal Court many times.  William also represents clients who have trouble paying their credit card bills and defends debt lawsuits. Patrick L. Hayes practices in Consumer Rights, Personal Injury, Criminal Defense and Bankruptcy.