NEW YORK--(BUSINESS WIRE)--Nest Seekers International, a savvy residential and commercial luxury real estate brokerage firm, today announced that Shawn Elliott Luxury Homes and Estates, a Long Island-based full-service real estate firm has joined its ranks. The boutique firm, founded in 2002 by Shawn Elliott, services Long Island's most prestigious communities spread between areas of Old Westbury, Brookville, Oyster Bay Cove, Roslyn, Woodbury and more. Now, 15 years later, Elliott's team, along