Joint Sponsors

[Destiny2000 10]

I myself have had NO income from employment in the last 5 years. My spouse supported me from Canada and is now here with me in the US and supporting me.
I am an apartment manager but just get reduced rent.
I filled out the Affidavit of Support forms and put my income at zero.
My sister and brother in law are going to be co-sponsors as they make above the federal poverty level.
Do they fill out the same Affidavit of Support form that I do? And since both their incomes will be counted, they each fill out their own right?

Thanks!!

[Destiny2000 10]

Thank you so much. I've had a headache for days now trying to get all this perfectly right