Karen M. Jansen 445 Hamilton Ave Suite 1102 White Plains, New York, 10601 Phone: 914-821-5200 Company Name: Karen M. Jansen, Esq. Lawyer Category: Family Law Profile Let this business know you found them on Westchester Magazine's Online Directories. Locations White Plains 445 Hamilton Ave Suite 1102 White Plains, New York 10601 Claim/Edit Listing