House Republicans last week moved a bill that would create a new non-agency residential mortgage-backed securities market to the full Financial Services Committee while the clamor grows for Congress to act on a more “comprehensive” legislative solution to GSE reform.By an 18-15 vote, the House Financial Services Capital Markets and Government-Sponsored Enterprises Subcommittee approved the Private Mortgage Market Investment Act, advancing the measure to the full committee.The bill’s sponsor and Subcommittee Chairman Rep. Scott Garrett, R-NJ, said passage of the measure is an “important first step” to permit private market participants to re-enter the marketplace without adding more burdens to the taxpayer.The revised bill would require the Federal Housing Finance Agency and the Securities and Exchange Commission to create several categories of mortgages with uniform underwriting standards for each, as well as to develop standard and uniform securitization agreements.