Richard J. Birdoff

ALDA Office Properties, Inc. is a real estate development company. It focuses on owning, operating, and acquiring office properties in Northern and Southern California. The company was founded on June 29, 2011 by Alan D. Gordon and Richard S. Ackerman and is headquartered in Los Angeles, CA.

RD Management LLC operates and manages commercial, industrial and retail properties. Its services include leasing, property management, construction and development, accounting and financial and IT services. The company is headquartered in New York, NY.

Bertram Associates engages in the construction of home buildings. The private company is based in Woodbury.

Realty Investors Development Corp. operates nonresidential buildings. The private company is based in New York.

Big Rock Partners Acquisition Corp. operates as a blank check company. The firm was formed for the purpose of entering into a merger, stock exchange, asset acquisition, stock purchase, reorganization, recapitalization or other similar business combination with one or more businesses or entities. It focuses on identifying a prospective target business in the senior housing and care industry in the United States. The company was founded on September 18, 2017 and is headquartered in Delray Beach, FL.