Montana Mortgage Expert: Brook Lynn Ulvestad at First Interstate Bank in Hamilton. Specializing in conventional mortgage loans, Brook Lynn provides expert guidance to homebuyers navigating the mortgage process. She ensures a seamless and efficient experience, helping clients achieve their homeownership goals. Available during standard business hours (9 AM - 5 PM) to answer your questions and assist with your mortgage needs. Contact Brook Lynn today for personalized service and expert advice on conventional mortgages.