Springfield, Mo.-based Guaranty Bank hired Tiffany Montgomery as vice president, private banking relationship manager. .Montgomery has eight years of banking experience, most recently as a private banking officer at a local bank. “Tiffany’s client-first mindset and commitment to excellence make her a great fit for our private banking team,” said Executive Vice President Heather Ramsey. “We’re excited to see her continue building meaningful relationships and helping our clients reach their financial goals.”