EAD (WorkPermit)

Hi, I was asked in a rfe a joint sponsor because my husband is an independent contractor and is hard to prove his income, bla bla, so my father in law is the new joint sponsor, he is a landlord and investor, and he gets benefits from SS, and I was asked in the letter to send tax returns, schedules, tax forms, and proof of citizenship, so I sent all that, plus bank statements for the past 12 months, all under my lawyer advice, but I wonder if I had to send more things like evidence of resources of income, even if they didnt ask for it in the letter. im super anxious because in the letter specifies that they just take a desicion on what Im sending. Or if Im ok by just sending what they asked me. Does anyone have a experience like this to give me advice or confort, or point mistakes out? Thank you in advance. Oh I sent too my husbands last 2 tax returns and 12-month bank statements