Santa Barbara, Calif.-based Yardi Systems announced Feb. 16 that the multifamily software and services firm purchased Waltham, Mass.-based online resident screening company RentGrow in a continuing effort to bolster the Yardi Multifamily Suite, a collection of ancillary business solutions including portals, payment processing, utility billing, procure-to-pay, and call centers that are integrated into the core Yardi Voyager software platform. More