The sale of Scandia Village this year is part of a trend of for-profit companies, including private equity groups and real estate investment trusts, snapping up struggling not-for-profit nursing homes, many of which were operated for decades by Lutheran, Catholic, Jewish, and other faith-based organizations.

The pace of sales has ticked up, reaching a high last year, according to Ziegler Investment Banking. Since 2015, 900 not-for-profit nursing homes and senior living communities nationwide have changed hands, with more than half of them acquired by for-profit operators.

For-profit groups own about 72% of the roughly 15,000 nursing homes in the United States, which serve more than 1.3 million residents.

While overall for-profit ownership percentage hasn’t notably increased in recent years, the type of for-profit companies that own these facilities has shifted toward private equity, real estate investment trusts, and complicated ownership structures, said David Grabowski, a professor of health care policy at Harvard Medical School.

Consumer advocates, researchers, and regulators are leery about this trend. They point to studies showing that nursing homes owned by for-profit companies — particularly investors in private equity and real estate — tend to have skimpier staffing, lower quality ratings, and more regulatory violations. Motivated by these concerns, the Biden administration issued a rule last fall that requires nursing homes to disclose more information about their owners and management firms.