Mentored by his father, who founded the company circa 1967, he has refined his skills in every aspect of real estate, thereby making a fundamental impact on his business and the areas where its properties are located. Over his real estate career, Gregory has exponentially decreased vacancy rates while increasing profitability for the family’s 1,300,000 ft² of rentable commercial space. Today, the O'Connell Organization's Brooklyn commercial rentals are fully occupied. Greg has worked to secure a diverse commercial tenant base that fosters coexistence rather than competition, a principle that he believes is the healthiest form of economic growth within communities. In addition to his lead role in the commercial real estate aspect of the family business, Gregory oversees the management of the O'Connell Organization's 500-plus residential units in Brooklyn, NY.