MATTAPAN, MASS. — Arbor Commercial Funding has arranged a $7.22 million loan for Tennis Road Apartments, a 55-unit community located in Mattapan. The loan carries a 10-year term with a 30-year amortization schedule and a 6.12 percent interest rate. John Kelly of Arbor’s Boston office originated the financing through the Fannie Mae DUS product line. The borrower was not disclosed.