It is best to contact state officials that license and regulate bus drivers for eligibility to drive buses.

Yes, your BF may invite your mom to visit on a tourist visa.

A cosponsor must be a USC or LPR, have acceptable sufficient income and must domiciled (living) in the US.

You will have no problems being admitted. Good luck.

Based on what you attempted to describe, it appears you have not been in deportation/removal proceedings. Good luck.

Follow the instructions on the forms you file with the USCIS.

Divorce is not disqualifying for any of your future visa applications.

This is in the hands of the medical doctors. They may be aware of the scheduling issues. It's not clear what help attorneys would provide and or...

You may or may not be required to appear for biometrics. Otherwise, your N-400 interview will be scheduled, to be conducted at your local filed...

Due to change in address, there is going to be some day, hopefully not much. At this point write no letters, please. Good luck.