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A rate lock connects a price to a deadline and a set of assumptions. Understanding all three is more useful than hearing only that the rate is “locked.”
This guide helps prepare questions for LMCU or another lender. It does not describe a particular lender’s current lock policy. Obtain that policy and the agreement for your own transaction through the lender’s official channel, and keep the documentation somewhere private.
Locate the written confirmation
The Loan Estimate indicates whether the rate is locked. Issuing a Loan Estimate does not always lock it. Ask the lender to identify the agreed rate, lock expiration, associated points or credits and any conditions in writing. Match that information to the loan structure you requested.
Keep a simple chronology: quote date, lock confirmation date, planned closing date and expiration. If someone says the lock was extended, add the new written confirmation instead of editing the old date from memory. The aim is a clear record, not a prediction about where market rates will move.
Work backward from closing
A closing schedule can involve an appraisal, title work, insurance arrangements, document review and other participants. Ask the loan officer what timing remains uncertain and how much space exists before expiration. For a tight schedule, the relevant issue is not merely the cheapest lock option; it is what happens if an unresolved task takes longer.
Ask who should be notified about a potential delay and when. A pending inspection issue or missing document deserves attention before the last day of the lock. Do not assume someone else has extended it automatically.
Price the delay scenario
Lock-extension policies and costs vary. Ask whether an extension is available, how its cost is calculated, who may bear it and what written action is required. Also ask what happens if the lock expires without an extension. Treat an explanation as a policy for the specific transaction, not a universal rule.
A fictional schedule
A buyer plans to close on the 20th and has a lock expiring on the 23rd. A title issue moves the proposed closing to the 27th. The four-day gap does not identify an extension price or who pays it. The buyer needs the lender’s written options and a revised closing plan. The dates are invented and illustrate timing only.
Identify what could change the offer
A lock can be affected by changed application facts, such as a different loan amount or verified income. Ask how a requested loan change, revised appraisal result or new credit information would be handled. A lock is not final underwriting approval and should not be treated as permission to change the transaction without checking.
If market rates fall, ask what the existing agreement allows. Do not assume a lower available rate will replace the locked rate without conditions or cost. Ask for the actual options rather than relying on a promise that the lender will “take care of it.”
Distinguish a deadline from a completed task
Build a short readiness list beside the lock calendar. For each unresolved item, record what is needed, who is handling it, and when an answer is expected. “Appraisal ordered” and “appraisal reviewed with no open questions” describe different stages. The same distinction applies to an insurance quote versus the coverage documentation requested for closing. Ask the responsible professional which milestone actually matters.
A useful status question is: “What could still prevent closing by our planned date, and which of those items needs my action?” That question is more informative than asking only whether the file is on track. It also avoids interpreting a lack of new requests as proof that every participant has finished.
Compare written options if the schedule changes
Suppose a fictional buyer is offered a seven-day extension for $350 and a fourteen-day extension for $550. The extra week costs $200 in this invented example. That arithmetic is easy; the harder question is which option covers the remaining uncertainty and what happens if neither does. Ask whether the shorter choice can be extended again, at what price, and whether either option changes other agreed terms. No availability or policy is implied by these numbers.
Keep any requested contribution from another party separate from the amount the lender says is due. A hope that someone will cover the charge is different from a confirmed agreement. Your decision worksheet should show the amount, payment timing, responsible party, and unresolved approval rather than only the most optimistic net cost.
Make a compact confirmation request
You can organize your questions without proposing new terms: Please confirm the lock expiration, the planned closing date, the tasks still outstanding, and the available action if closing is delayed. Please identify any fee, revised points or credits, and the date by which I must choose.
Use the response to update your calendar and ask how the selected option will be documented. If the response leaves an important condition unclear, ask that specific follow-up. A written record is most useful when it answers the decision in front of you, rather than simply collecting messages that repeat the word “locked.”
Keep the comparison current
If a new offer or extension changes the price, update the loan comparison and ask which disclosure documents will reflect it. Preserve the explanation of each material revision. At closing, use the final-document checklist to resolve inconsistencies before signing.
The practical goal is not to outguess interest rates. It is to know what protection exists, when it ends and what action is needed if the timeline or application changes.
Sources and scope
Public sources checked November 4, 2026. This is general U.S. education, not financial, legal, tax or insurance advice. Numerical examples are invented illustrations, not LMCU offers. Confirm current terms with the relevant provider.
- CFPB: Mortgage rate locks: Rate locks have a time limit and conditions; changes to the application and extension policies matter.
- LMCU: Home loans: Public overview of LMCU home lending, including purchase and refinance categories. Availability and borrower terms require direct confirmation.