Can I claim my daughter and her baby on my return? Babies medical medicare paid. Daughter concerned it violates Medicaid. She will get very little if she claims them.

Daughter and her little girl lived with me all of 2015 in Ohio.  She only made a few thousand dollars last year and due to that is getting almost no refund if she claims herself and her child.  I would like to claim her on my return & give her that money.  Her daughters medical expenses are covered by medicaid and she is concerned that would violate qualifying for the medicaid.