Once you get a loan approval is the time most loan officers lock your loan. 30 day locks are the most common. If you anticipate your credit scores improving due to paying down credit cards, you may want to wait until your credit scores are fully optimized. Your loan officer can repull credit and use the higher credit scores to lock in your rates. Rate locks needs to be done before the mortgage underwriter can issue a clear to close.
Gustan Cho NMLS 873293
USA MORTGAGE NMLS 227262
A Division of DAS ACQUISITION COMPANY NMLS 227262
The Gustan Cho Team at USA MORTGAGE