Shop The Market
As a savvy consumer would you every purchase a big ticket item like a car or even a flat screen TV without shopping around for the best overall deal? No!
Even if you already have a pre-approval letter from a lender it only makes sense to have a competitive “bid” on your mortgage business and have a second or third lender provide you with a quote. You have all the documents pulled together, let the market work for you and get you the best monthly payment.
This is not a threat to your credit score if done in a 30 day period.