The decision is really about access
A bank prices from its own lending menu. A mortgage broker can compare multiple wholesale and specialty channels, which matters when the file is not perfectly plain: FHA, VA, self-employed income, investor loans, lower down payment, or tighter debt ratios.
What to compare before you apply
Compare the full loan estimate, not just the rate. Points, lender credits, underwriting overlays, appraisal timing, title fees, lock length, and closing date flexibility can move the real cost more than the headline number.
When a local broker helps most
A local Brownsville mortgage broker is useful when a buyer needs a pre-approval letter that matches the offer strategy, a Spanish-speaking explanation of documents, or a plan for Cameron County taxes, insurance, seller credits, and cash to close.