Fannie Mae demonstrated measurable progress during 2011 while conditions at Freddie Mac neither worsened nor improved significantly but both GSEs have ample room for improvement, according to a report issued this week by the Federal Housing Finance Agency. The FHFA’s fourth annual Report to Congress deemed the two GSEs “critical supervisory concerns” last year with “continuing credit losses” coming primarily from loans originated during the years 2005 to 2007. The report identified “key challenges facing each company, including the ongoing stress in the nation’s housing markets, the challenging economic environment and the uncertain future facing the enterprises,” noted the FHFA. “However, management and the boards were responsive throughout 2011 to FHFA’s findings and challenges and took appropriate steps to begin resolving identified issues.”