Common Securitization Solutions (CSS) is a leading mortgage securitization platform, operating the cloud-based Common Securitization Platform (CSP) for Fannie Mae and Freddie Mac. They manage Single-Family Mortgage-Backed Securities (SF MBS), including the Uniform Mortgage-Backed Security (UMBS). Services include issuance, bond administration, disclosure, and tax services. Their target audience is primarily lenders and investors in the secondary mortgage market. The unique selling proposition is their 100% cloud-based platform, offering scalability, real-time analytics, and robust security protocols, enhancing liquidity in the U.S. housing finance system[1][3][5].