Should I get pre-approved before house hunting in Summerville or Sullivan's Island?

Getting pre-approved before house hunting in Summerville or Sullivan's Island matters because these two towns sit at very different price bands, and knowing your actual budget first prevents falling for a listing you can't finance in either one. Pre-approval also strengthens an offer once you find the right property, especially on competitive Sullivan's Island listings. Brian Beatty recommends pre-approval as the first step regardless of which of the two a buyer is leaning toward.