My son has recently died & he always had trouble keeping a job. He did work on & off over the past 10 years but never for more than a month or two at a time. He applied for SSD but was denied. He had one son, who he gave me guardianship. My son was never married & the mother gave my son, all physical rights up for my grandson.

My son went to court & the judge signed all necessary papers with orders that she could file for joint custody and/or visiting rights IF she has proof that she went for the treatment for her that he(Judge) ordered for her to do.
She has not contacted us at all concerning her son--- no cards; no calls; no visits at all. He is 12.
My son had power of atty papers drawn up with a Will & Testament papers too. The atty who filed the papers said all is in order & if ever I need anything just contact her.
For the whole 9 years that my son had full custody of him; He & my grandson lived with me, I took care of him just like I did for my own.

My question is: Should I file for SSI even if my son never kept a job longer than 2 months? Is there any chance that my grandson's mother could gain custody of my grandson---even if he wants to continue to stay with me.
(over the years we always told my grandson if ever he wanted to talk or see his mother or brother & sister, we would try & make arrangements for them to get together. (my son tried calling her once, about a yr. ago & she refused to talk to my son or grandson)

I'm sorry this is so long & I hope it isn't too confusing. I'd appreciate any information anyone might have. Thank you.