Leni Cummins is the Chair of the Condominium and Cooperative Practice at Cozen O’Connor, a group she built into a powerhouse with an originated book of business exceeding $5 million. Cummins is the youngest member of the firm’s Board of Directors and is known for pioneering "exchange of property" settlements to resolve construction defect claims without litigation.

In 2025, she successfully negotiated an agreement forcing developer Harry Macklowe to sell units to clear a $38 million debt to the 432 Park Condominium. She also recently won a high-profile recovery of millions in back payments from former New York City mayor Rudolph Giuliani.

Beyond her practice, she advises LeFrak on compliance with the new Fair Chance for Housing Act for their vast residential portfolio. Cummins is a frequent contributor to The New York Times Real Estate section and chairs the New York City Bar Association’s Cooperative and Condominium Law CLE Committee.

She also empowers women through The Fempire Group, an investment cooperative for female-led companies. Her responsive and tech-savvy client service has built her an incomparable reputation among high-end luxury boards.