When Roberta Mendelsohn moved into Harriett & Ralph Kaplan Estates Assisted Living a few years ago, she quickly discovered that one of her favorite things was helping new residents feel at home. Today, Mendelsohn, 85, serves as the community’s “resident ambassador,” a role that suits her outgoing personality and caring nature. “I immediately introduce myself to new residents,” Mendelsohn said. “I understand the first few weeks can be overwhelming when