The Non-Qualified Mortgage Jumbo (55% DTI) program is designed for borrowers who may not have traditional documentation like tax returns, W-2s, or pay stubs. It offers flexible income verification via 1099-only, bank statement, asset depletion, P&L-only (unaudited), Alt-Doc (24 months), Lite-Doc (12 months), or Reduced-Doc employment packages—depending on documentation availability. Borrowers may qualify with up to 90% LTV for purchase, 85% for rate/term refinance, and 80% for cash-out refinance, with a generous 55% debt-to-income limit, extended amortization options, and interest-only payment flexibility. Minimum credit score typically starts around 660 middle score, and major credit events like bankruptcy, foreclosure, or short sale must meet seasoning requirements.