Mortgage Pre-Approval in Washington, Step by Step

Pre-qualification vs. pre-approval — they are not the same

A pre-qualification is an informal estimate based on numbers you self-report — no documents verified, no credit pulled (or only a soft pull). It's useful for early budgeting but carries little weight with sellers.

A pre-approval means the lender has actually verified your income, assets, and employment documents and pulled your credit. The result is a letter stating the loan amount you're approved for. In the competitive King County market, listing agents generally expect a genuine pre-approval letter with any offer — and the strongest form is a fully underwritten pre-approval, where an underwriter (not just a loan officer) has already reviewed your file.

The document checklist

Gather these before you apply and the process moves in days, not weeks. Lenders re-verify everything again right before closing, so keep your finances quiet after pre-approval: no new credit cards, no financed furniture, no job changes without telling your lender.

• Pay stubs covering the most recent 30 days.
• W-2s and federal tax returns for the last 2 years (self-employed buyers: 2 years of full returns plus profit-and-loss statements).
• Bank and asset statements for the last 2 months — every page, every account you'll use for the down payment.
• Photo ID and Social Security number for the credit pull.
• Explanation letters and paper trails for any large recent deposits ('sourcing') and for gift funds (a signed gift letter).
• If applicable: divorce decrees, student-loan statements, landlord contact for rental history.

Credit score basics for pre-approval

Most conventional loans require a minimum credit score around 620, and FHA loans can go lower (580 with 3.5% down under standard FHA guidelines). But minimums are not the real story — pricing is. Lenders price conventional loans on a grid where your rate improves in tiers, and the difference between a 680 and a 740+ score is real money every single month on a Seattle-priced loan.

Before applying, pull your own reports free at annualcreditreport.com and dispute any errors — disputes take roughly 30 days to resolve, so do this early. Don't close old cards (it shortens credit history) and pay balances below about 30% of each card's limit before your lender pulls credit.

How long it takes and how long it lasts

With documents ready, most lenders issue a pre-approval within 1–3 business days; fully underwritten pre-approvals can take up to a week. The letter is typically valid for 60–90 days, after which the lender refreshes your documents and credit. If your search runs long, renewing is routine — plan for it rather than letting the letter lapse mid-offer.

Shop 2–3 lenders — without wrecking your credit

Credit-scoring models treat multiple mortgage inquiries made within a short shopping window (generally 45 days for newer FICO versions, and at minimum 14 days for older ones) as a single inquiry. So compare 2–3 lenders in the same one-to-two-week window: a bank, a credit union, and an independent mortgage broker will often quote noticeably different combinations of rate and fees for the identical loan.

Compare official Loan Estimates line by line — rate, discount points, lender fees, and the APR — not just the advertised rate. Our Mortgages guide covers exactly how to read a Loan Estimate.

Which lenders should you approach?

FirstNest doesn't recommend specific banks. If you plan to use Washington's down-payment-assistance programs (like WSHFC Home Advantage), you must work with a WSHFC-trained participating lender — the Washington State Housing Finance Commission publishes the official, always-current list on its website, and it's a strong starting point for any Washington first-time buyer even if you don't end up using assistance.