I need to write an "Affidavit of Support" for my niece to prove that she and her husband are a married couple. The reason why I have to write an affidavit of support is due to the fact that they were not married in the church and thus, the church did not issue marriage certificate. However, they were married in our traditional way, and it's arranged marriage. For that purpose, I need to write a letter to support that my niece and her husband are a genuine couple. Please help me. You can add anything you want. Please write for me at least 200 words or more. Thanks a lot for your help.