Industry experts and trade groups said this week they were generally supportive of a House Republican bill to create a new non-agency residential MBS market, but they still want the government to have a role, however limited, in the final product. The Private Mortgage Market Investment Act, drafted but not yet filed by Rep. Scott Garrett, R-NJ, would create a heavily regulated MBS market made up solely of private entities that would function with no federal guarantee at all. Garrett, who chairs the House Financial Services Subcommittee on Capital Markets and Government...