How long does it take for fiancee visa???

It will take 8-12 months. Once you apply they will process her application in the Ukraine and she will have to arrange an interview with the US...

Can a 10 year bar be implemented upon return if you travel with AP ?

You probably will be fine with the advanced parole. However, you should be advised that any travel represents a risk upon reentry.

Any affidavit written by someone in support of you should be notarized.

I-765 form. How to fill the long name ?

Yes, you can use small letters. It's more important to get the name correct.

My wife started green card process but is stuck in Ukraine. Can she come back?

It's unclear what you have done in the past. Generally, she is eligible as the wife of a citizen for a green card. If she abandoned a prior...

If my husband abandon his 485 due to travel without AP approval, how can he travel back and forth to US?

If you travel after filing for the I-485 without advanced parole, it will be deemed abandoned. You need to take a step back and develop a coherent...

Can my alien spouse sponsor herself if she has income through long term bank deposits?

It may be enough but you will have to work it out on the I-864 and I-864A forms. You will still need to sponsor her and possibly add a joint...

Which form should I fill out for my Wife's affidavit of support ?

Yes, you will need to have the joint sponsor complete the I-864. Check the poverty guidelines to determine whether your additional sponsor has...

Abuse spouse petition ?

It should take a year or so but could longer. You have to be sure to have solid evidence of the abuse. Things like photographs, affidavits,...

Ask your employer to file an extension. Otherwise, you will need another employer to sponsor you.