What should be the content of a letter evidence from my exwife to the immigration office that I've been paying a child suppor

Attorney Fong has provided an excellent comment to your posting.

Reentry on H1B visa

You need to make an INFOPASS and go to your local USCIS and state you have an emergency - provide as much prrof as possible - they can provide an...

Be honest and accurate; unemployed is fine - as my coleagues states the information can be amended at the interview. Good luck.

Can I stay beyong 6 years on H1B visa if greencard is filed.

I agree; before making any changes to status you should contact an experienced immigration attorney for a legal opinion.

Will a misdemeanor a affect my immigration case it was for driving with a suspended license ?

I agree with my colleagues. You need to consult with an experienced immigration attorney for a legal opinion.

Can I report someone marrying for a greencard? Can I report someone harboring an illegal even if they are married?

My colleagues are accurate in their comments. You can report but its up to USCIS and ICE to investiage and there is no private right to palce...

Will my B1/B2 become invalid???

I agree. Its best at this stage to obtain a consultation from an experienced immigration attorney.

Would it be considered unconstitutional to have a diffrent set of laws for immigrants such as lower minimum wage?

Dedends on the State's Constitution and the wage provisions listed.

A #- where can i find it?

You can aslo contact USCIS Customer service and ask for confirmation of the numbers.

H1 transfer : Do I need to wait for receipt?

I agree with my colleagues as to the Company's decision.