Can I claim my daughter and grandchildren as dependents.I provide a home (not my principal home) to them at no cost. Can I claim them as dependents?

I pay the taxes, insurance, water, sewer, all maintenance and appliances. She pays for the electric and gas. She collects social security as her husband passed away about 5 years ago. She began to work in 2017. Should have asked this question 5 years ago!