h4 Visa revoked, what is next step, urgent help

[hansa_2017]

Hi All,
I am on H4 dependent visa.  
Got arrested for a suspicion of 245 PC. 
On preliminary hearing, court gave me a letter stating "no charges filed presently but could be in future". Which i believe means a reject letter.
Just after that, I got an Email from US consulate, that my visa is revoked and the revocation will be effective once i leave from US. (I m presently in USA)
Intend of the revocation is not mentioned.

1. DO I NEED TO LEAVE USA IMMEDIATELY?
2. How LONG can i stay in USA OFFICIALLY before visa renewed? 
3. Do i need to go to my HOME COUNTRY (where the visa was issued) to reapply for new visa?
4. My H4 visa expires in Sept 2017.
5. What exactly would an immigration attorney do for me? (Do they send some kind of documents to court etc?)
6. What documents i need to get from court for a new visa application?

Please guide me. 

[shekar11#]

12 hours ago, hansa_2017 said:

Hi All,
I am on H4 dependent visa.  
Got arrested for a suspicion of 245 PC. 
On preliminary hearing, court gave me a letter stating "no charges filed presently but could be in future". Which i believe means a reject letter.
Just after that, I got an Email from US consulate, that my visa is revoked and the revocation will be effective once i leave from US. (I m presently in USA)
Intend of the revocation is not mentioned.

1. DO I NEED TO LEAVE USA IMMEDIATELY?
2. How LONG can i stay in USA OFFICIALLY before visa renewed? 
3. Do i need to go to my HOME COUNTRY (where the visa was issued) to reapply for new visa?
4. My H4 visa expires in Sept 2017.
5. What exactly would an immigration attorney do for me? (Do they send some kind of documents to court etc?)
6. What documents i need to get from court for a new visa application?

Please guide me. 

1. Not necessary.

2. As long as your I-94 is valid.

3. Better option.

5. Yes.

6. May be a case dismissal document.