Just a quick update: 
 
	 
 
	My wife had her interview yesterday and was approved! The officer told her at the interview that her visa would be issued.
 
	 
 
	We had initially applied using my assets as my income isn't enough, but even though I showed more than enough liquid cash assets they said I needed a joint sponsor.
 
	 
 
	Thankfully I had already uploaded the joint sponsor into the system along with supporting documents so they had everything they needed. We brought a printed version but they didn't need it.
 
	 
 
	A quick note: We added our joint sponsor AFTER the interview was scheduled so there was no option of adding a joint sponsor in the CEAC system. I simply uploaded all the documents in the sponsor's section and they accepted that.
 
	 
 
	I hope this helps.