Home Irrevocable Limited Power of Attorney (Form 520) October 20, 2021 Irrevocable Limited Power of Attorney (Form 520) A one-time delivery of limited power of attorney (Form 520) is required from all sellers/servicers.Download Form 520 Download job aid Recent News July 29, 2026 Fannie Mae Reports Net Income of $4.0 Billion for Second Quarter 2026 July 27, 2026 Updated UCD v2.0 Resources Available June 29, 2026 Understand Top Defects to Help Strengthen Loan Quality