Real Estate

Commercial Property

We are proud to serve some of the largest and most renowned real estate owners and property managers based in the Tri-State area, some with property holdings worldwide.

We offer a full range of accounting, assurance, tax compliance and advisory services to these entities.  We also add-value for our clients by consulting with real estate owners and property managers on cost segregation studies, tax-free exchanges, energy credits and other available to provide substantial tax savings opportunities.

Condominiums and Cooperatives

GCS is well versed in providing services to common interest realty associations, including financial statements audits and reviews, tax compliance, and consultation to governing boards.


GCS provides a vast array of services to real estate developers of various sizes throughout the tri-state area.


GCS serves the needs of numerous construction contractors in the tri-state area including residential and commercial builders, roadway and public infrastructure contractors, excavators, electrical and plumbing contractors.  We have vast experience with the unique accounting and tax concepts and other requirements applicable to construction entities, such as the percentage-of-completion method of accounting, and contractor bonding requirements.