Almost impossible unless she got green card or work permit on her on through marriage . Most likely employer in USA won't hire one without it because they would have to sponsored the alien person a work visa which cost great amount of money/time / to hire lawyer and still USCIS more likely will deny to grant work visa unless it's the job that lack in US workforce (ex.specific doctors/scientist,etc), If she can get K1 visa ( fiance) when in the US after register in marriage while waiting for green card she could apply for work permit

have to have money in thai bank with ur name. After got the visa u can take the money out ,no need to show again every 90 days report just yearly when u renewed ur visa again

Just did ours

2.yes

3.under consideration period is 30 days

(You will have to show financial prove again on the result day)

4.yes