Can i adopt my stepson if his mother has been dead for 2 years

You can try to adopt. You will need a lawyer who is an adoption specialist. THe court will weigh all factors relating to the best interests of the child. Expect a drawn out process, medical and psychological exams etc. As a non-blood relative of the child, you are going to have to do a very good job convincing the court that you offer the best home, stability and welfare for the child. good luck to you