Im a resident alien since 1997 and i have to plea guilyy to adrug possetion felony i want to know if i am gona get deported

Quite possibly. Depends on what you were charged with.

When can green card be applied to spouse ?

If and when your husband applies for adjustment of status based on an immigrant visa petition, you can also file for adjustment of status.

What can i do now im in brazil for my H1-B visa and got sent to the physician? I had a DUI with dropped charge in 2011

Whether you gave a false statement depends on whether or not you were arrested, you may have been charged but not arrested, discuss that with your...

Will my current employer have to withdraw the H1B petition?

Your first employer, as a good business practice and to avoid liability for wages, should withdraw your H1b and LCA if you stop working for them. ...

It is not clear why you need the experience letter. If it was to qualify for the job with your original employer, you needed that experience...

I-130 petition withdrawal

Generally not. It will go to the fine and whenever they process it, they will see it's withdrawn and send a denial to the last address on file.

New immigration bill

If a new law is passed which legalizes those who are in the U.S. in your circumstances, then yes.

Can I transfer my H1B if the current employer has started initiating H1B Amendment?

Yes.

Points to be remembered during N400 RFE Infopass appointment

You could bring the paragraph you posted, those are the points to remember.

Will getting married to a US citizen automatically revoke my F2B petition and does my situation require special process?

Yes, you will lose eligibility for your F2b. You may wish to immigrate instead based on your marriage to a US citizen.