I am desperately looking to find a physical location for support group meetings for mothers that have been rejected by an abusive adult child and the estrangement from my grandchild because of it. I am heartbroken and alone and can't handle it on my own.

There are adult children who abuse their parents by physically creating fear of violence in the parents' own home. You have been rejected, and that shouldn't be called abuse. Start a group called something like 'Estranged grandparents support group' and put an ad in your local paper. Investigate grandparent rights in your state by googling. Not all states have them, and they don't apply in all cases, but it's worth looking into. Also ask yourself what it is that your daughter doesn't like about you and try to work on that, whether you think it's fair or not.

Not knowing where you are its hard to help find a physical meeting place for adults, but there are several on line.

Maybe more background could guide us in helping you.