A Brooklyn-based real estate investment firm is buying two Garden City office buildings for $91 million.

JFR Global Investments, headed by Joe Friedland, is paying $50 million for the 252,730-square-foot building at 900 Stewart Ave. and $41 million for the 297,339-square-foot building at 990 Stewart Ave.

The Town of Hempstead Industrial Development Agency has approved the transfer of economic benefits that had been granted to the previous owners of the properties, Woodbridge, N.J.-based Onyx Equities and Boston-based Davis Companies, according to an agency statement.

JFR plans to spend a combined $7.73 million in improvements and upgrades at the buildings. The buildings were originally developed by New Jersey-based Lincoln Equities Group in 1986 and 1988.

“The IDA’s agreement to transfer benefits to the buyer of these buildings will help retain hundreds of jobs in the town and ensure that these two prominent properties are in the hands of a financially strong owner,” Fred Parola, CEO of the Hempstead IDA, said in the statement.