A-1 Signing Services: Mobile Mortgage Closing & Title Services A-1 Signing Services, Inc. is a nationally recognized provider of residential and commercial title services, mobile mortgage closings, appraisals, flood determinations and settlement services. A-1 also provides mobile closing service in the convenience of your home or office, evening and weekend closings. Mortgageclosers.net~Site InfoWhoisTrace RouteRBL Check