Pam HartCovid-19 Is Giving the Multigenerational Home Business a Big BoostThe Wall Street Journal. - Katy McLaughlinTheresa “Tree” Hale, a 70-year-old retired paralegal, didn’t particularly want to move from her home of 40 years. But in July, she and her husband, Ron Hale, closed on a newly built house about 20 minutes away in Tolleson, Ariz. Her motive: The home was builder Lennar Corp.’s Next Gen design, …