WisconsinOffice Transwestern closes lease at Mayfair Road building in Wauwatosa June 24, 2019 Share on Facebook Share on Twitter Share on LinkedIn Share via email DF Institute, Inc. – doing business as Kaplan – renewed its lease of 5,486 square feet at 3333 N. Mayfair Road in Wauwatosa, Wisconsin. Transwestern executive vice president John Dulmes and executive vice president Daniel Walsh represented the landlord in the transaction.