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 December 18, 2025 Controlling For Collateral Defects December 17, 2025 Announcement SVC-2025-07 – Servicing Guide Update December 15, 2025 Updates to UCD v2.0 Specification Resources