Selected for the Terner Labs Housing Venture Lab

Chapter 6

Credit Scores, Derogatories, and Why You’re Not Being Judged

Published by Series Homes. 2 minute read.

Credit does not measure morality. It measures risk. A credit score is not a reflection of how hard you worked or what you overcame. It is a snapshot of how a lender should expect you to behave under stress, based on your past financial activity.

Minimum credit scores and lender overlays

FHA allows loans to borrowers with scores as low as 580, but that does not mean your lender will approve one. Most lenders overlay additional requirements. Some set their floor at 620. Many require 680 to avoid manual underwriting. These are not illegal. They are risk management decisions made by institutions that do not want their loan repurchase rate to spike.

Your score is not the only thing that matters, but it determines whether your application gets flagged or flows through automated approval. A score under 640 means the underwriter will read your file more closely. A score under 600 means compensating factors must be strong. This can include higher income, lower DTI, or more reserves.

Collections, disputes and late payments

Collections are not always disqualifying, but they raise questions. Medical collections are usually ignored. Old utility or telecom bills may be waived if they are small. Anything recent, large, or unpaid will require an explanation and may need to be paid off before closing. Disputed accounts may stall your file. Lenders often require that you remove the dispute flag before moving forward. That can lower your score in the short term. It does not matter. The system needs to see the file clearly.

Late payments in the past twelve months are a red flag. Missed mortgage payments are a bigger one. If you have had a delinquency on a student loan or federal debt, the lender will require documentation that the issue has been resolved. If it has not, you will not get a federal-backed loan.

When a file goes to manual underwriting

Manual underwriting is the fallback for files that do not pass automated systems but still meet guidelines. It is more thorough and slower. It requires more documentation. It often includes stricter reserve requirements. It is not a rejection, but it is not ideal. Files that go manual should be prepared to over-explain and over-prove every assumption.

What to fix before you apply

If your credit is weak, fix it before applying. Do not rely on goodwill. Pull your reports. Settle what needs to be settled. Pay down balances below thirty percent of the limit. Avoid new inquiries. Do not open new accounts. Do not close old ones unless advised by a credit expert. The best file is quiet and clean.

No lender expects perfection. But they do expect clarity. If your credit is confusing or volatile, it will slow everything down. If it is stable and readable, everything else gets easier.

Credit is not a moral scoreboard. It is a risk signal. Your job is to shape what it shows before the lender ever sees it.

All chapters

  1. IntroductionThis Is Not for Most PeopleWhy house hacking is a test, not a shortcut, and why thinking like an underwriter is the only way to pass it.
  2. Chapter 1The Ownership Illusion: Why the American Dream Skips RentersHow institutional capital redefined single-family housing, and the one lane federal rules left open to owner-occupants.
  3. Chapter 2The Federal Loan Rule Nobody Taught YouThe occupancy rule that lets a 2-4 unit building be financed as a home, and the FHA, VA, and conventional terms that follow from it.
  4. Chapter 3You Are the Underwriter NowYour loan is a file scored by a machine. What that file has to contain before a listing is worth your time.
  5. Chapter 4Income, Employment, and What Lenders Actually TrustW-2s, self-employment, commission, and rent: how each income type is documented, averaged, or thrown out.
  6. Chapter 5Debt, Risk, and the Brutal Math of DTIFront-end and back-end ratios, program caps, student debt, and the three levers that actually move DTI.
  7. Chapter 6Credit Scores, Derogatories, and Why You’re Not Being JudgedScore floors, overlays, collections, and manual underwriting, and how to shape the report before a lender sees it.
  8. Chapter 7The Down Payment Myth: What Entry Actually CostsClosing costs, reserves, inspections, and mortgage insurance: the real cash it takes to close and operate.
  9. Chapter 8Rental-Coverage Gates Across Major Loan ProgramsThe FHA self-sufficiency test, conventional rent treatment, VA reserves, and why the appraiser's rent schedule rules.
  10. Chapter 9The False Security of Cash FlowWhy gross rent minus mortgage is marketing, and what real, fully loaded cash flow has to survive.
  11. Chapter 10Finding Properties That Qualify, Not Just Ones That Look GoodLegal unit counts, safety repairs, rent haircuts, and the filters that remove most portal listings before an offer.
  12. Chapter 11You Just Bought a Small Business with TenantsYou acquired an operating entity with tenants, revenue concentration risk, and one point of failure: you.
  13. Chapter 12Vacancy, Turnover, and the Cost of Being Too OptimisticRealistic vacancy, turnover cost, and time, and why a flat three percent vacancy line is a bet against reality.
  14. Chapter 13You Live Where You Work Now: What Nobody Tells You About Sharing WallsProximity to tenants is an edge only when it is paired with written rules and consistent enforcement.
  15. Chapter 14Refinancing, Holding, or Getting Out: What Comes NextWhen to refinance out of FHA, when holding still pays, and the three compliant ways to exit.
  16. Chapter 15This Is Only for a Few: Why That’s GoodThe friction is the filter. Why this model stays mispriced, and who it is actually for.