Why Shopping Interest Rates Can Cost Real Estate Investors Thousands (Series Introduction)

As a mortgage broker and banker, I hear one phrase almost every day: “I’m shopping interest rates.” There’s a bit of irony in that statement, because shopping rates and loan products is literally my full-time job. I do it 50+ hours a week, nearly every week of the year.

That said, I understand why investors say it—especially newer ones. When you’re starting out, it feels logical to focus on the lowest number you see. But over time, I’ve seen that this mindset often leads to costly mistakes. Many real estate investors make mortgage decisions based solely on interest rates, without fully understanding how loan structure, fees, program selection, and tax strategy impact long-term returns.

Interestingly, experienced investors rarely shop lenders the same way. They typically work with one or two trusted lenders who specialize in specific products, keep their documentation current, and focus on execution and efficiency rather than chasing the lowest advertised rate. Those relationships take years to build, but they often save investors far more than a fraction of a percent ever could.

In this upcoming three-part series, I’ll break down the three biggest mistakes I see new real estate investors make when shopping for a loan:

• Mistake #1: Focusing on interest rate instead of total loan cost

• Mistake #2: Undervaluing experience and relationships when choosing a lender

• Mistake #3: Choosing the wrong loan program for an investment property

Each post will dive deep into one mistake and explain how avoiding it can save you time, stress, and tens of thousands of dollars over the life of your investments.