Our clients are important to us and we take pride in helping them find the best office space.


Jack and his team at were trusted advisors to Sailthru for several years as we scaled our company to over 100 employees. Their market knowledge and experience working with growth companies were extremely helpful to our success in finding and securing several suitable locations for our workforce. We highly recommend Jack and OLC and would work with them again in the future.
— David Blanke, Operations and Finance Leader, Sailthru
Extremely professional in the face of NYC real estate, which can often be chaotic and irrational. Moves quickly, gets the job done, and takes care of his clients.

Jack got us into our new space and help us get out when we needed to move. I have been 100% satisfied with our relationship with Jack and OLC.
— Marshal Gaddis, Finance, Sales & Operations at Strayboots
Jack came highly recommended to us by our outside counsel and he certainly lived up to their recommendation! Jack met with us right away, identified a process to find us our new office space and delivered on that program. Throughout this process, Jack’s patience and attention to detail allowed us to work through many internal and external challenges to finalize our lease transaction. His combination of market knowledge, experience and professional reputation all served as huge assets in his representation of our needs in the NYC marketplace. We would wholeheartedly recommend Jack to other tenants.
— Rivka Louwen, Marketing Communications Manager at TagMan
Jack was recommended to us by multiple sources and for good reason— he’s extremely resourceful, knowledgeable about both real estate and the tech community, and a total pleasure to work with throughout the process. He helped us find options in multiple neighborhoods until we identified our ideal space, assisted with the lease negotiations, and even offered intros to contractors, potential subletters, and moving companies. I would highly recommend Jack to other startups and tech companies.
— Nicola Korzenko, Chief of Staff, Signpost
Jack is the consummate professional. In a very competitive business, he is calm, patient and good humored. He has deep domain expertise, works with a strong team and gets the job done. Bottom line, he always did what he said he would, an invaluable character trait. He’s a gem.
— Marc E. Jaffe, Seriel Entrepreneur
Since 2004, Jack has represented all of the chamber’s real estate interests, including our major relocation to lower Manhattan, several subleases and even some small expansions. In fact, Jack acts as an outside advisor to us on all things pertaining to real estate - we just pick up the phone and call Jack. We are so comfortable working with him that we now refer many of our member firms to Jack.
— Christine Ward, Director of Finance, German American Chamber of Commerce