In addition, OakStar bank offers a four-part conventional loan closing guarantee for loans closed in Springfield and the surrounding area. We are the only bank that offers this guarantee in writing! We are so confident in our ability to meet this guarantee that we offer a $100 savings bond if any of the four part guarantee is not met! Let OakStar Bank be your trusted financial advisor in your next home purchase or refinance! Our continued growth is dependent on client referrals, if you, your family members or friends are looking for a mortgage, shop OakStar Bank!