Mark I. Williamson

GUARANTY BANK has named Mark Williamson executive vice president, national residential finance.

TMF Investment Committee: (left to right) Theresa Acosta Lee, vice president, SDDC; Tom Phillips, loan officer, Jefferson Heritage Bank; Tom Utecht, senior loan officer, SDDC; Mark I. Williamson, vice president, Guaranty Federal Bank; Charles English, executive vice president, SDDC; Mike Mora, executive director, Dallas/Fort Worth Minority Business Development Center.