If you were eligible to file for adjustment of status, and have already filed, and you are going to be approved, then there is no need to extend...

Under 245(k) you can file an employment based adjustment so long as you have under 180 days unlawful presence or violation of status.

Sure, you just need a waiver under 212(h) for your crime involving moral turpitude. You will need a qualifying relative to be granted the waiver.

We can check processing times at https://egov.uscis.gov/processing-times/ to find out how long it takes.

It does seem that CIS rejected the fee based on your abuse claim. So if you cannot prove eligibility based on that, there is some risk CIS could...

Yes a person can file for naturalization even if their green card is expired, but not if they were a conditional resident and they have not filed...

Yes, a person who is in the U.S. without lawful status can be deported even if they are married to a U.S. citizen. Whether filing applications now...

You should answer yes, that you have previously filed an I-765 and provide the receipt number. That's what it asks you to do since they do not...

If you get denied, you could try consular processing for an H4, or try a late filed change of status to H4.

You are not required to work for pay, that is completely up to you. You can continue your unpaid work without any violation of status.