SOUTHINGTON, CONN. — R. Calabrese Agency (RCA) has completed the sale of a 10,400-square-foot office building, located at 1850 West St. in Southington. Initial plans are for the building to be occupied by Dr. Nicole Porzio-Hawley and her husband Dr. Andrew Hawley, who are opening a new chiropractic and sports medicine practice this summer named Porzio & Hawley Chiropractic. Ralph Calabrese of RCA represented the buyer, Dr. Robert Porzio. The seller, EZ Enterprises, was represented by Frank Mirmina of Lil-1 Associates. The acquisition price was not disclosed.