While not advisable, it is okay through marriage based adjustment.

Best to work with an attorney for guidance, based on dates of necessary filing.

About 9-13 months for decision with EAD about 4-6 months after submission. Consult with an attorney for guidance.

Yes you may file outside of the US as long as abuse happened in the states.

Yes you may but not for greater than 6 months at a time.

It can take at least 2 years for VAWA adjudication.

No that is not considered in terms of eligibility.

Yes the income should be sufficient for sponsorship.

No this is a serious offense and I agree with my colleagues about an NTA.

I agree with my colleague about scope of attorney representation.