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Our Team

Harry Cohn

Harry Cohn

President and CEO

As Harry approaches his 30th year in the commercial real estate business, there are many wonderful stories to tell.

From his modest beginnings of starting his first real estate company in Chicago at the age of 28 to now running a successful commercial real estate brokerage business at Cohn Commercial Properties new Headquarters in Sylvan lake, Michigan (and many steps in between), it has been quite the ride.  During Harry’s career, he has had the distinct pleasure in working for and with several developers and retailers that are too many to name.

Harry has been blessed to have participated in several charitable causes, including his work with the Friendship Circle and Integrative Neighborhoods, an intentional community developed by Harry’s wife that provides an independent living alternative for the special needs community.

When not at the office, Harry enjoys traveling, running, biking and spending as much as time on the lake during the Michigan Summers.

Jacob Rosberg

Jacob Rosberg

Associate

Jacob has been with CCP since 2019. Since then, Jacob has gained experience in project leasing, investment sales, dispositions and vacant land development. Jacob has had the privilege of working with a national client base including, The Kroger Corporation, Dealpoint Merrill, STORE Capital, The McDonalds Corporation, and Slate Asset Management.

Jacob was born and raised in Oakland County. When not working, Jacob enjoys the outdoors, boating, fishing and flying in pursuit of a Private Pilot License. Jacob is a member of ICSC.

Robyn Slappy

Robyn Slappy

Marketing Director

Robyn has served as the Marketing Director at Cohn Commercial Properties, Inc. in Sylvan Lake, Michigan since November 2021. She is respoinsible for the creation of all marketing material and packages for new and existing listings. Robyn has been a resident of the state of Michigan her entire life.

She began her careen in real estate in 1997, when she took a real estate sales position with Century 21 MJL — Farmington Hills, Mi. Later her career path led her to Keller Williams Realty in 2000, where she would spend the next 12 years.

Robyn currently serves various organizations such as Hand 2 Hand Holdings, Inc., of which she is the founder;  she is a long-standing member of the renowned Whitfield Company (a gospel recording artist choir); and, she is the former First Lady — Progressive Church of God in Christ, just to name a few.

Sam Ziegelman

Sam Ziegelman

Hi! I'm Sam Ziegelman, a 23 year old graduate from Western Michigan University in Creative Writing and a minor in communications. I've been doing data entry for the past seven years, starting with my father's company, and now with Cohn Commercial. My hobbies range from cooking to gaming, with a little martial arts mixed in here and there.

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