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 January 27, 2026 In Case You Missed It: Policy Updates January 26, 2026 Available Now in Broad Production: UAD 3.6 and Forms Redesign December 18, 2025 Controlling For Collateral Defects