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 August 18, 2026 UAD and Forms Redesign: Updated FAQs August 12, 2026 Announcement SVC-2026-05 – Servicing Guide Update August 5, 2026 Announcement SEL-2026-07: Selling Guide Updates