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Mortgage Rate Holds and Commitment Letters: What They Guarantee (and What They Don’t)

Published 21 September 2026 · By Jatin Dua, Broker of Record, RE/MAX Quantum Realty

A laptop and mortgage documents on a desk (illustrative)
Short answer

A pre-approval and rate hold are not a promise to lend on a specific home. The commitment letter approves the actual property but lists conditions, such as appraisal and document checks. Waive your financing condition only when those conditions are satisfied.

Buyers often hear three terms used loosely: pre-approval, rate hold and commitment. They are not the same thing, and the differences matter on the day you waive your financing condition.

Pre-approval

A lender’s preliminary review of your income, credit and debts. It gives you a price range and often a rate hold. It is not a promise to lend on a specific property.

Rate hold

A lender reserves a rate for a period, commonly around 90 to 120 days, so that if rates rise while you shop, you keep the held rate. If rates fall, many lenders will give you the lower one. The hold ends if you don’t close within the period.

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What moved the number

Starting from the area baseline for your property type, here’s what each answer added or subtracted.

Market context

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A range is a starting point.
A strategy is what sells.

This model doesn’t know that your neighbour’s identical semi went $80,000 over asking last month, or which two upgrades actually pay back in your area. That conversation is free and takes twenty minutes.

How this works — your estimate is generated by a model built on recent Toronto & GTA sale data, weighting area, property type, size, age, condition, lot and features. It is an automated estimate for information only. It is not an appraisal, not a Comparative Market Analysis, and should not be relied on for financing, legal or tax purposes. Real pricing depends on comparable sales, interior finishes and market conditions on the day — ask me for a written CMA before you make a decision.

Commitment letter

Once you have an accepted offer, the lender underwrites the actual deal and issues a commitment. It confirms the amount, rate, term and product, and lists conditions, such as:

  • An appraisal supporting the value.
  • Verification of income and employment.
  • Proof of the down payment and where it came from.
  • Title insurance, property insurance, and for condos a satisfactory status certificate.

The trap

A commitment “subject to” conditions is not the same as all conditions being met. If you waive your financing condition before the lender’s conditions are satisfied, and the appraisal comes in low or a document fails, you are still bound to close.

How to protect yourself

  • Send every document the lender asks for the same day.
  • Ask your broker or lender which conditions remain before you waive.
  • Keep your financing condition long enough for the appraisal to come back.
  • Don’t change jobs, open credit or move money around until closing.

The takeaway

Send documents fast, ask which lender conditions remain before waiving, and keep your finances unchanged until closing.

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Frequently asked questions

Is a mortgage pre-approval a guarantee?

No. The lender still needs to approve the specific property and verify your documents.

How long does a mortgage rate hold last?

Commonly around 90 to 120 days, depending on the lender.

What is a mortgage commitment letter?

The lender’s written approval for a specific property, usually with conditions to satisfy before funding.

When is it safe to waive financing?

When the lender confirms the conditions in the commitment are satisfied, not just when the commitment is issued.

Sources

Related reading

About the author — Jatin Dua, Toronto and GTA real estate broker

I am Jatin Dua, Broker of Record and co-founder of RE/MAX Quantum Realty Inc., Brokerage, Unit 101, 799 The Queensway, Etobicoke. I work with buyers and sellers across Toronto and the GTA, with deep local knowledge of the west end. Four-plus years of active GTA transactions and over $100 million in sales volume. Every market figure here comes from TRREB’s published tables and every rule from RECO or Ontario legislation, so you can check all of it without asking me.

Reach me at connect@jatindua.com or 833-330-1925, or book a call.

Please read this. General information current as at 21 September 2026. It is not legal, tax or financial advice and not advice on any specific transaction. I am a registered real estate broker, not a lawyer or accountant. Market figures are from TRREB Market Watch, August 2026 (released September 2026); district samples are small and change month to month. Statements about my own services describe what I offer and are not a ranking or an endorsement by any third party. Not intended to solicit buyers or sellers currently under contract with another brokerage. Images are illustrative. E. & O.E.

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