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O'Sullivan & Zacchea represents a broad range of clients in residential and commercial real estate purchases, sales, financing, leasing and development transactions and associated litigation.

We are your real estate and lending experts.

Whether it’s the place of your dreams or just a stop on the road, we can help. We understand the process from start to finish and pride ourselves on making your transaction as easy as possible. We conduct due diligence, negotiate and advise on details of your transaction and let you focus on the bigger picture.


We have extensive experience representing clients in commercial and residential real estate transactions; including Cooperative Units, Condominium, Single & Multi-family homes, foreclosures, short-sales, commercial real estate, deed transfers, share and unit transfers, lien foreclosure and enforcement, landlord-tenant matters, sale of estate property, reverse mortgages, closings by power of attorney, mortgage issues, real estate leases, real estate disputes (partition actions, contract disputes, real estate fraud, boundary disputes and adverse possession claims), purchase or sale of an apartment building, mortgage refinancing, preparing and negotiating letters of intent, financial commitment letters, LLC and ownership agreements, joint venture and development agreements, as well as other ancillary agreements.

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