Hi Adrian, as per to my experience it was the immigration who told me to sponsor my son since, i'm not sponsored by my husband because he cannot (salary less 10k) and i'm working with another company now. What we did is we give all the requirements from Salary Certificate both me and my husband, employment contract both attested by MOFA, bank statement both of you, Certificate/Diploma attested by MOFA, Housing Contract which we got from my husband's company, Marriage Certificate attested by MOFA.