It will take approx one month to get your Resident permit done, once it is done you can apply for your family's visit visa, provided you have all the required documents attested by ministry of foriegn affairs(MOFA) here in qatar. To obtain attestation from MOFA, you shall be having related documents attested by qatar embassy in your country or your contry's embassy here in Qatar. The documents which needs shall be marriage certificate,your educational certificate,birth certificate (for children).