Other financing is to come from the city, the state and Fleet Bank.
His mother is a senior risk manager for Fleet Bank in Boston.
Fleet Bank forgave some of the debt, a center official said.
He also had a savings account at Fleet Bank worth $50,000 to $100,000.
Financing is from Fleet Bank and the partners' own equity.
Fleet Bank is providing down payment assistance loans of up to $7,500 to first-time buyers.
Last year, Fleet Bank incorporated business etiquette into their sales training program.
Fleet Bank had vacated 75,000 square feet at the time of the purchase.
Fleet Bank, acting as a broker, was the only institution that would play, offering a variable rate on a $130,000 loan.
Fleet Bank is financing the venture, with a state loan guarantee.