LEWISVILLE, Texas--(BUSINESS WIRE)--Solutionstar Holdings LLC, an indirect wholly-owned subsidiary of Nationstar Mortgage Holdings Inc. (NYSE: NSM) (“Nationstar”), announced today that it has closed the acquisition of Experience 1, Inc., the holding company for Title365, Trusted Signing and technology subsidiaries X1 Labs and X1 Xpress (collectively, “Title365”). This acquisition is another strategic move to leverage technological expertise to deliver comprehensive, end-to-end online services f