Keshia Knight Pulliam's Ex Wants Joint Custody of Daughter, Ex-Wife Vouches for Him

Keshia Knight Pulliam's ex wants joint custody of their baby girl and has a bunch of people vouching for him ... including his ex-wife.

It appears from legal docs Keshia doesn't want Ed Hartwell near their 2-month-old daughter. She claims he plotted to trigger a miscarriage during her pregnancy, something he denied.

Hartwell just filed new docs in the divorce case, asking for joint custody of Ella Grace.

He submitted a letter from "RHOA" star Lisa Wu -- his ex wife -- singing his praises as a great dad and community man. Lisa says, "I am never worried about my child when he is with his dad, I know his dad will do everything within his power to love, protect and provide for EJ while he is not with me."

Lisa goes on, "I am positive that [Hartwell] will put his daughter's best interest first as he has shown with my children."

Ed says in the docs he's more than willing to pay child support.