Rental Research Services, Inc. - Setting The Standard In Resident Screening® We invented resident screening for the multifamily housing industry in 1969. Rental Research offers the nation’s most sophisticated online resident screening solution, The Instant Inquiry 3.0. Why “3.0″? We take our 40-plus years of resident screening experience, combine it with state-of-the-art technology, and the result is the most comprehensive and complete resident screening solution available. Rental Research Services, Inc. is the leader in multifamily resident screening. Visit us at www.rentalresearch.com.