ST. PETERSBURG, Fla., and BROOKFIELD, Wis. (1/4/08)--First Advantage Corp., a global risk mitigation and business solutions provider, has purchased the assets of CredStar, Fiserv Inc.’s mortgage-credit-reporting business unit. Terms of the agreement were not disclosed (PR Newswire Jan. 3). The purchase expands First Advantage’s presence in the U.S. mortgage credit reporting industry. It already services 19 lenders, according to the company. CredStar is based in Los Angeles and operates satellite offices in Arlington Heights, Ill.; Phoenix; and Philadelphia. It provides credit information solutions to its mortgage lender clients via WebStar, a Web-based platform. Fiserv, a core processor for credit unions and other financial institutions, is based in Brookfield, Wis.