If B2 holder stays 5 months every time he enter the US (I-94 allows to stay 6 months)Will this effect his chances to get F1?

No it will not effect your chances to get an F-1 visa. Find a college that will accept you, get your I-20, then apply for the student visa.

Your wife can file an I-130 visa petition now. Once that is approved you can apply for a green card but will have to do this process through the...

Could my employer withdraw my H1B petition Which is in RFE status? After the withdrawal, can i apply H4 extn?

If you are currently on H-4 status file the extension request before this status expires. Yes the employer can withdraw the H-1B petition now.

Illegl immigrant orderd probation and 72hrs jail time.

Not likely, If he skips out on serving his sentence or probation he will get jailed for 18 months. He has most likely been reported to ICE...

Can I apply for a waiver? Am I eligible for a green card thru my marriage?

You can certainly apply for the family based visa and then apply for adjustment of status but will need a waiver for fraud and also for unlawful...

Can i remarry and stay in the US.

Yes. Consult with an immigration attorney that handles VAWA cases before you file anything.

Is it true if a person buys house in Florida he/she can apply for US citizenship or get a green card?

Not true. However, if you invest in an EB-5 Regional Center you can qualify to apply for a green card. This will cost in excess of $500,000 US...

If B2 holder contacted a school& got I-20 while he is visiting then went home to get F1, will this effect his chance to get F1?

You will not have any problems. Good luck with your studies.

I have understood that from August, spouses and children under 21 can immigrate without waiting time, it's true?

It all depends on whether the visa petitions have already been approved. Check with a local immigration attorney.

Is it available to Adjustment of status from b1/b2 to f1 for my kids to study in private school ?

You can apply. However do not start school until after the application to change status is approved. You must file an I-539 after the I-20 is...