-NOC / Letter from your sponsor / company
- copies of your passport, qid, birth certificate of your child, marriage contract, qid of your wife, (bring the original copies as well just in case
- bank statement
- house contract with baladiya stamp
- school credentials
- application form

provide a copy of your wife's qid as well. and dont forget the birth certificate of child from Hamad. they will ask if your child was really born here in qatar.

that's all i know. just wait for the others maybe i miss something.

hth.