Hi varsh1:
Thanks & appreciate your reply in detail.
Are you sure the sub-list that you had given under 'supporting documents' (item no.5) above in your response, are not mandatory? However, as you did, me too will try to attach them with I-824 to be safer.
Also, while I'll attach my wife's passport as well as our marriage certificate copies, should I have to attach her birth certificate also? I thought birth certificate copies are required only for dependent children..
Please kindly let me know.. Thanks again!