John Paul Guinan

Thomas Mobilia is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Defendants. Thomas, who practices law in New York, New York, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas is held by other top lawyers in the same geographic and legal practice area.

Repeatedly recognized as a leader in the real estate sector, Samuel Ross has negotiated and structured some of the most complex and significant commercial property acquisitions, ground leases, and sales throughout the country. Sam represents sellers and purchasers of major office buildings, mixed-use facilities, apartment complexes, hotels, and retail establishments, as well as landlords and tenants in negotiating, drafting and enforcing office, retail, restaurant and garage leases. Both grou...

Karen I. Bray is a top attorney recognized by Best Lawyers in the practice area(s) of Product Liability Litigation - Defendants. Karen I., who practices law in New York, New York, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Karen I. is held by other top lawyers in the same geographic and legal practice area.

Larry Medvinsky is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Larry, who practices law in New York, New York, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Larry is held by other top lawyers in the same geographic and legal practice area.

Oksana P. Lashko is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Oksana P., who practices law in New York, New York, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Oksana P. is held by other top lawyers in the same geographic and legal practice area.

Clients across sectors including life sciences, financial services, aviation, media/entertainment, and many others rely on Geoffrey Young’s strategic counseling and robust advocacy to resolve their most complex commercial disputes. Geoff is a seasoned attorney with a winning record of litigating disputes of all kinds, including those related to pharmaceutical drugs and clinical trials, consumer class actions, financing agreements, media broadcasting services, technology services, and bi...

Melissa Billig is Co-Chair of Tannenbaum Helpern's Construction & Design Practice. She represents owners, developers, architects, engineers, construction managers and contractors engaged in the design and construction process on projects in New York City and across the region. Melissa delivers a range of experience as both a results-driven litigator and a strategic counselor, adept at drafting and negotiating complex contracts. Melissa represents clients in high-profile, multi-party contr...

Jason A. Lewis is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Jason A., who practices law in New York, New York, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jason A. is held by other top lawyers in the same geographic and legal practice area.

There’s a reason why so many major developers in New York City rely on Martin Siroka for assistance with financing mixed-income and affordable residential developments in the New York metro area. He has more than 40 years of experience in the field, including more than a decade as general counsel of the New York City Housing Development Corporation. As a former government official, he understands how to interact with government agencies. It's something he does with regular success, guid...

Mr. Cohen is one of the leading matrimonial lawyers in the United States. He has been counsel in some of the most important equitable distribution and custody matters in New York. Mr. Cohen regularly represents many of the most accomplished individuals and their spouses in the fields of finance, real estate, business, public service and entertainment. Due to Mr. Cohen’s extensive record of accomplishment and reported decisions, he is also frequently called upon to represent individuals ...