A fully underwritten pre-approval rarely decides an offer, and the sales pitch wrapped around it deserves a hard look. A file that goes all the way through underwriting before you ever find a house happens on maybe one loan in twenty. When it does, it usually points to one of two things: a lender with real doubts about the file, or, more often, a higher-cost lender using it as a tactic to lock you in psychologically before you shop anyone else. It often arrives packaged with a guaranteed ten-day close and a free future refinance, and those are exactly the promises to distrust. From the listing side, the underwritten file usually is not the deciding factor anyway. As long as the pre-approval holds up when we call the loan officer and talk it through, that is enough, and most sellers neither want nor need an eight-to-ten-day close. A clean, well-supported pre-approval from a lender who answers the phone will carry an offer just fine. Where underwriting timing matters more is a genuinely tight, competitive situation, and even then the conversation with the loan officer tells us most of what we need to know.