Conventional Loan interest rates for investment properties

[Jason Lam]

Is there a good place to find interest rates for investment properties? Everything published online seems to be for primary residence. I have a property I am looking to refinance that is about 50% loan to value that I am getting quoted 3.125% 30 year fixed with no points, in Osceola County FL. I think this is a great deal but is there a quick way to check without calling all the lenders?