yes, I am a grandparent raising my grandchildren and the Montgomery County, MD has a "kinship navigator" program (which I just started participating in). If not for them, I wouldn't have known I could apply for cash assistance ONLY for my grandkids (BIG help), plus they've provided me with a lot of other resource connections. :)
In my in area in MA Old Colony Elder Services offer support for GP or family members over 55 who care for grandchild, along with support for caregivers of any age.
Take care,
Carol