Start preparing your finances before you begin serious apartment or house hunting. Request a mortgage preapproval when you are ready to make offers, leaving time for the lender to review your documents before a property catches your attention. If income, credit, or the source of your down payment needs clarification, have that conversation earlier.
For a Manhattan or Brooklyn purchase, keep two questions separate: can you finance the purchase, and does the particular property fit your finances and plans? A lender's preliminary answer to the first does not settle the second.
Prepare first, then obtain a useful letter
Build a document folder with recent income records, bank and investment statements, and information about your debts. Explain self-employment, irregular income, gifts, or a planned sale of another home at the outset. The lender determines what it needs for your circumstances; the CFPB's application-packet guide is a useful starting point.
Set your own monthly housing limit before treating a lender's maximum as a shopping target. Include the mortgage payment and property-specific taxes, insurance, and maintenance or common charges, alongside your other spending and savings priorities. A purchase can be financeable without being comfortable.
A preapproval is a lender's preliminary willingness to lend, not a guaranteed mortgage. Ask what financial information has actually been reviewed and what remains outstanding. Lenders use the terms prequalification and preapproval differently, so the work behind the letter matters more than its label. CFPB preapproval guidance explains these distinctions.
Put the expiration date on your search calendar
The CFPB describes 30 to 60 days as a typical preapproval-letter validity period, not a rule every lender follows. Use the expiration date and renewal requirements on your own letter.
Here is a hypothetical schedule. You assemble your documents in early September, begin active viewings later that month, and receive a letter dated September 20 that expressly expires October 20. If your search continues into November, arrange a refresh before relying on the letter for an offer. That October date is an assumption in this example, not a NYC deadline.
A refreshed letter may require updated statements or another review. Ask how much time the lender needs, especially if you are traveling or your income is not a straightforward salary. The CFPB notes that borrowers may need to update their application documents during the process.
Changes matter even before the printed expiration date. Tell the lender about a change in employment, debt, available down-payment funds, or purchase plans so you are not shopping on outdated assumptions.
For a co-op or condo, review the building as well
Do not use a preapproval letter as a substitute for examining building finances and purchase documents. The New York Attorney General's co-op and condo guide identifies board minutes and financial reports as potential sources of information about major repairs and their costs. Those issues can affect how you evaluate the purchase even when your personal borrowing capacity looks adequate.
For a sponsor purchase, review the offering plan with your attorney before signing. For a resale, an offering plan may be unavailable or outdated; your attorney should identify the relevant documents and contractual protections. These are different transactions, not one universal document checklist.
Bring the specific building and unit to the lender early enough to ask what property-related review is still needed. Bring the same information to your attorney and Caryl so the financing discussion, document review, and property search are working from the same address and purchase terms.
Keep three later decisions separate
Your loan comparison: A preapproval does not choose a lender for you. Once you have the property and application information, compare the loan terms, projected payments, and closing costs in the lenders' Loan Estimates. Compare similar loan assumptions so a lower payment is not mistaken for a lower overall cost.
Your rate lock: The letter's expiration date is not a rate-lock agreement. A rate lock has its own conditions and end date; extending it can cost money. Ask whether the rate is locked and whether that period covers the anticipated closing.
Final approval: The lender must finish its review of the application and property. Keep requested documents current and resolve outstanding conditions rather than treating the earlier letter as a promise that closing will occur.
Bring a search plan, not just a borrowing limit
Before your next round of viewings, know your comfortable price range, the cash you want to retain after closing, your letter's expiration date, and any unresolved lender questions. That gives you a practical basis for deciding which homes deserve a closer look.
Discuss your Manhattan or Brooklyn home search with Caryl Berenato. Share your timing, preferred property type, and financing status; send sensitive financial documents through the lender's secure process.