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Financing9 min read

How to Choose a Mortgage Lender (and Actually Compare Offers)

The lender you pick can swing your costs by thousands — how to compare banks, credit unions, brokers, and online lenders, read Loan Estimates apples-to-apples, and shop rates without hurting your credit.

By The Lotum AI TeamReviewed by Ava, our financing & structuring expert

Borrowers who get multiple mortgage quotes save real money — studies put the value of comparing even two lenders in the thousands over the life of the loan — yet close to half of buyers still take the first offer they receive. The lender decision is a five-figure decision dressed up as paperwork, and the industry is happy to let you rush it.

The four kinds of lenders — and when each wins

  • Banks: one-stop convenience and relationship discounts if you hold assets there; often slower and rate-conservative.
  • Credit unions: frequently the best fees and rates for members, especially on smaller loans; smaller menus.
  • Mortgage brokers: shop many wholesale lenders at once — strongest for non-standard files (self-employed, complex income, lower credit) and thin-margin pricing. The broker is paid by the lender or by you, disclosed up front.
  • Non-bank/online lenders: speed and rate aggression; most mortgages today come from non-banks. Fine for clean, conventional files; thinner hand-holding when something goes sideways.

Compare Loan Estimates apples-to-apples

Every lender must issue the same standardized three-page Loan Estimate within three business days of your application. To compare them honestly: get quotes on the same day (rates move daily), for the same rate-lock period, and look at three lines — the rate, the points and lender fees in Section A, and the APR, which rolls fees into the rate for comparison. A lower rate with heavy points is often the worse deal unless you'll keep the loan a long time. Section A is also where lenders differ most — appraisal and title costs are largely pass-through.

Shop without wrecking your credit

Multiple mortgage inquiries within a single shopping window — 45 days for most scoring models, 14 for the most conservative — count as one inquiry. Get every quote inside two weeks and the credit cost of shopping five lenders is the same as shopping one. The 'each quote hurts your score' worry is the most profitable myth in lending.

Beyond price: the questions that predict a smooth closing

  • What's your average clear-to-close time, and what share of your loans close by the contract date?
  • Is underwriting in-house or shipped out? In-house closes faster and fixes problems same-week.
  • When can I lock, for how long, and what does a lock extension cost if the deal slips?
  • Will you service my loan or sell it? (Selling is normal — but know who you'll actually be paying.)
#mortgage lender#loan estimate#mortgage broker#rate shopping#financing

Frequently asked

How many lender quotes should I get?

Three to five, from different lender types (bank or credit union, broker, non-bank), all within the same 14-day window so the credit inquiries count as one and the quotes are comparable. Then use the best written Loan Estimate to negotiate with your preferred lender.

Does rate shopping hurt my credit score?

Not meaningfully. Mortgage inquiries inside a single shopping window — 45 days for most models, 14 for the most conservative — are scored as one inquiry. Keep your shopping inside two weeks and comparing five lenders costs the same as comparing one.

Is a mortgage broker better than a bank?

It depends on your file. Brokers shine for non-standard situations (self-employed, complex income, credit dings) because they can shop many wholesale lenders at once. Strong-file borrowers sometimes beat brokers with a credit union or a bank relationship discount. The only way to know is to get quotes from both — that's the point of shopping.

Can I switch lenders after I've started?

Yes, up until closing — you're not committed until you sign closing documents. Switching mid-process costs time (new underwriting, possibly a new appraisal), so it's best done early or for a materially better offer. Pre-approval with one lender obligates you to nothing.

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