Our Team


Our principals – Timothy Goetz, Robert Geiger and Jack O’Donoghue – possess more than 90 years combined experience in commercial real estate services. Since its first year, GSA has been committed to delivering the highest level of service possible through teamwork and the utmost integrity and professionalism.

Timothy R. Goetz


Robert N. Geiger


Brokerage Team

Randall G. McCombs, SIOR

Executive Vice President

John M. Lisowski

Vice President | Industrial Brokerage & Leasing

Gary F. Roberson

Vice President | Brokerage & Leasing


John S. Jackson

Vice President | Retail Brokerage & Leasing

Jesse H. Ainsman

Associate Vice President



Kimberly J. Batchelor

Vice President | Brokerage & Leasing

Samuel T. McGill

Vice President | Brokerage & Leasing

Dick Cassetti

Senior Vice President



Evan Cicirello

Associate Vice President

Jared Foster

Associate Vice President


Support Staff

Edie C. Hartman

Director of Business Development

Diane McQuade

Director of Marketing Design

Nicole D. Montecupo

Operations Manager