B-1 for business purchase before E-2, for Canadians

A Canadian visitor may own a US business, but not work in it or operate it without employment authorization. You should coordinate the US purchase...

If my H1B visa stamped on the passport has expired & I hold a valid i-797, does it mean that my visa has not expired or expired?

The I-797 may provide continued status. A visa in one's passport no longer within validity dates is expired.

A F-1 visa application will consider past US illegal immigration history.

The L-2 dependent may live separately until divorced. The U visa is available to abused spouses. It is very long process.

Removal from US- Immigration detention

a person facing ICE detention might ask for bond or home ankle monitor.

You may explore H1B Cap Exempt employers. https://www.uscis.gov/news/h-1b-cap-exemptions-based-relation-or-affiliation

Do I have have a strong case for the EB-1a visa?

Hopefully, your wife is not a Fulbright scholar with an unfulfilled 2 year foreign residence requirement. You may qualify for EB1A or EB2NIW. A...

Difference between F2A filling date and final action date.

When the filling date of Feb 2016 is after the final action date on the visa bulletin page an immigrant visa may be applied for.

Can I change my name on marriage certificate?

If in the US you may make an application to the court where you reside. If outside the US a person may follow their local rules for a name change.

When is the best time to get married for an EB1?

A fiance' might marry the principal EB1 anytime before actually submitting an application for green card.