Daniel Gualtieri, who has more than 20 years experience in real estate and finance, leads the small team at Hamptons Mortgage Corp., which specializes in jumbo loan financing and luxury home development. Located in a nicely decorated house turned office on a part of Montauk Highway called Pantigo Road, Gualtieri and two other loan officers help potential homeowners and business owners review mortgages, home equity loans and construction loans. They emphasize product education, and offer credit counseling and financial planning services.