MMG Insurance Co. has promoted Joseph Cassidy to personal lines senior underwriter and Michael Rand to commercial lines senior underwriter and business development specialist. MMG Insurance is a subsidiary of Maine Mutual Group, a regional property and casualty insurance company whose home office is in Presque Isle. Cassidy began his career with MMG Insurance as an associate underwriter in 1997. In 1998, he was promoted to underwriter and then, in 1999, to personal lines lead underwriter. Cassidy earned bachelor’s and master’s degrees in business management from Husson College in Bangor. He and his wife, Heather, have three sons, Collin, Dalton and Ethan. Rand began his career with MMG Insurance as an associate underwriter in 1999. In 2000, he was promoted to commercial lines underwriter and, in 2002, to commercial lines lead underwriter. Rand graduated magna cum laude from the University of Maine at Presque Isle, earning an associate of arts degree in business management. He and his wife, Jennifer, have three sons, Josh, Eric and Gabriel.