Hi

Get a PCC ( Police clearence certificate)

Certificates....1.Degree , 2.birth if u have kid, 3.marriage.

Above no need to do any attestaion from your country for visa procedures in doha, unless the employer needs them.

Nothing is required to stamp your visa and apply resident ID card except your passport.

You will have to attest them from Doha only..first by your country embassy in doha and then the Minsitry of forgn affairs ( MOFA) Doha. That too only if you are applying for Family residence.

gud luck