He was a staff attorney of the Leadership Council for Metropolitan Open Communities in Chicago from 1970 to 1972.
[2] After his retirement from the federal bench, Rosenbaum joined JAMS, the largest private provider of mediation and arbitration services worldwide, at its resolution center in Minnesota.
Rosenbaum specializes as a mediator, arbitrator and discovery master in Minnesota and throughout the country.
He manages disputes ranging from intellectual property and patent matters, complex and class action litigation, domestic and international, securities, civil rights, environmental and employment.
1944), served as a judge in Hennepin County District Court from 1992 until her retirement in 2014.