Is it OK if my mom files form I-130 for my brother, the day after she gets here in USA?

Yes she can do so. Good luck here....................

I-601 where to file?

The 601A waiver can be utilized for spouses for USC who have unlawful presence. The 601A wavier is a pardon of the unlawful presence. If this...

I would talk to a qualified immigration attorney. This is not something you can resolve online.

Should I go ahead and file the form I-130 for my father?

You may be eligible to file the I130/I1485/I1765/I131 for your father based on your lawful entry. Please work with a qualified immigration...

How can do I transfer to a new school and regain F1 status?

You can do a COS here in the US or home and get a F1 stamping done. The later most likely will be faster.

Is it easier or better if she applies when shes single than being married and will my record affect her application?

Your record will not impact her. she can file for naturalization now or later. if there is no reason for a delay in naturalization, it may make...

There is no expedite provision here.

Does a person have to leave the country to file a form I601 as well as to adjust their status?

His wife should be able to file a onestep adjustment case. He should talk to a qualified immigration attorney. He should not travel outside the US...

Can I apply for OPT Stem Extension and I593 concurrently ?

You have to make a decision on which one you opt for. Filing both petitions is counter productive.

Yes if the H1b has valid status.....................