Figuring out the details on how to structure, capitalize and operate new secondary-market facilities for small lenders are key challenges for the Senate Banking, Housing and Urban Affairs Committee as it pushes to mark up mortgage reform legislation by the end of this year. This week, lawmakers pushed lender trade groups to come together and find answers. The bipartisan Senate blueprint for secondary mortgage market reform includes several key provisions designed to facilitate small-lender access when Fannie Mae and Freddie Mac are no longer around, including creation of a new mutual or cooperatively-owned institution through which lenders could issue conventional mortgage-backed securities guaranteed by the government. If a new MBS mutual for small lenders is going to be competitive, it will have to be capitalized...[Includes one data chart]