US Immigration from Japan

I have my tax returns for 2020 and 2019, but did not file in 2018 (I was a student and not working). Do I check question 25 (under part 6), or is that only for if I didn't file in the most recent tax year (2020)?

I've looked everywhere and cannot find a solid answer to this, so any suggestions would be very appreciated.

A decent size of my income is based on commission. As such, I am not sure what to put for part 6 question 7. I've been in my position for a little over a year, and have one tax return (2020) for this role. Should I put my target annual compensation (base pay + commission at 100% of my goal), or should I put total income listed on my 2020 tax transcript?

With just my base pay I am above the required amount, but not by a whole lot so it would not be great to put only that I don't think.

Hello!
Apologies if this has been asked/answered.
I am living abroad in Japan with my Japanese husband.
We want to start the process of getting him a visa so we can move to the US.

Because I will be filing from abroad, I was under the impression that I have to do DCF.

However, it seems that the circumstances for DCF are for emergencies.

I am not sure what the difference is between filing for an I-130 and doing DCF.
Any information is helpful!
Thanks!!

My wife who has GC applied I-131 re-entry permit, but I forgot to put a copy of her GC in the envelop. What should we do? Waiting for the USCIS response? Or submit the new one? I appreciate any of your suggestions.

I'm finally putting together packaged for family based (spouse) adjustment of status as someone that's currently in the US under an E2 visa. I was wondering if anyone is aware that if I should or shouldn't file I-765 as I am authorized to work in the country as a E2 visa holder as long as I stay with the same company, or if I should just file for I-765 anyways.