Attorneys for Maryland homeowners are asking the courts to dismiss hundreds of foreclosure cases that depended on paperwork submitted by so-called robo-signers on behalf of mortgage servicers. Civil Justice, a Baltimore nonprofit that specializes in foreclosure issues, made the request in motions filed last week in two cases. One motion asks that all Maryland foreclosure cases with documents signed by Jeffrey Stephan of GMAC Mortgage — including the Baltimore case in question — be tossed out. The other asks for the same treatment of all Maryland cases with documents signed by Xee Moua of Wells Fargo.