Property deeds are recorded in the Suffolk County Clerk’s Office in Riverhead, NY. The direct phone number is (631) 852-2000. If the property was purchased prior to 2005, a copy may be on file in the Town Assessor’s Office. Property owners must complete a FOIL request and provide proof of ownership to obtain information on their property. The Town Assessor’s Office can be reached at (631) 957-3014.