Abbotsford, Wis.-based AbbyBank promoted Sam Tesmer to CFO. Tesmer, who joined the $645 million AbbyBank in 2008, has more than 17 years of banking experience..Tesmer has a bachelor’s degree in finance from Rasmussen College, and graduated from the Graduate School of Banking at the University of Wisconsin-Madison. “Sam’s well-rounded background — including customer service, lending and finance — gives her a unique perspective on the bank’s operations and the needs of the communities it serves,” according to AbbyBank.