WALTHAM, Mass. — Benchmark Senior Living, a Waltham-based owner-operator, has hired Jerry Kemper as senior vice president and chief financial officer.

HERMITAGE, Tenn. — Charter Senior Living has named Roger Peden II as executive director of Charter Senior Living of Hermitage, and independent living, assisted living and memory care community in the Nashville suburb of Hermitage.

CHICAGO — Succession plans may play a crucial role in the future of senior living, as more than 70 percent of nonprofit CEOs will likely retire within the next 10 years according to a recent survey by Ziegler.

WEST ALLIS, Wis. — MSP Real Estate, a seniors housing developer the parent company of West Allis-based operator Heritage Senior Living, has hired Lars Johnson as the CFO of both companies.

ATLANTA — The Arbor Company has hired Michelle Hamilton as its new senior vice president of operations.

ALEXANDRIA, Va. — Argentum has named John Schulte as vice president of quality improvement.

NASHVILLE, Tenn. — Brookdale Senior Living (NYSE: BKD) has re-hired Bill Sheriff, the company’s former CEO, as a consultant.

BOWLING GREEN, Ky. — Charter Senior Living has named Jim Britt as executive director of Charter Senior Living of Bowling Green. The community offers independent living and assisted living in Bowling Green.

NEWTON, Mass. — David Hegarty has announced his plans to retire as president and chief operating officer of Senior Housing Properties Trust (NASDAQ: SNH). Jennifer Francis, currently a senior vice president with SNH parent company RMR Group, will replace Hegarty effective May 1.

SAN FRANCISCO — The American Society on Aging (ASA) has appointed Karyne Jones as chairman and Michael Adams as chair-elect.