How do I go about asking my ex to sign off his parental rights to my 4 year old daughter. He spent 4 years in prison, and he has only seen my daughter 1 time and he very rarely pays child support and I would like to know the appropriate steps to take in asking his to sign of his parental rights, and does it make a difference that I have sole psychical and legal custody of her until the age of 18?

Exactly what do you hope to gain by his signing off his rights?

How do I go about asking my ex to sign off his parental rights to my 4 year old daughter. He spent 4 years in prison, and he has only seen my daughter 1 time and he very rarely pays child support and I would like to know the appropriate steps to take in asking his to sign of his parental rights, and does it make a difference that I have sole psychical and legal custody of her until the age of 18?

He cannot sign over his parental rights. There's a message about this at the top of the board you neglected to read.