If this is a first time DUI, it should not pose a problem.

Is someone eligible for U-visa if the case is old and closed ?

You should have an immigration attorney analyze all the facts. To obtain a U visa, you need the cooperation of the police station, and if they no...

I 864 sponsor

Yes, the affidavit of support applies to financial responsibility--criminal records are irrelevant.

I 864 sponsor

Yes, the affidavit of support applies to financial responsibility--criminal records are irrelevant.

Visitor visa with arrest warrant

It depends on the laws of the country you intend to travel to.

Public means tested programmes

This is not necessarily an immigration question. If they are lawfully here, they can apply for "Obama Care" and their income will be used to...

Is there anywhere I could apply for a lottery green card. I have had an appointment with you previously and you said be patient

If you have unlawful presence in the US, you are not eligible for the DV lottery.

My American boyfriend and I plan to get married, is the sooner the better?

You can get married whenever you feel it is right.

Is he detained by ICE or detained by a Texas state prison? If detained by ICE, you can marry him while in custody.

I have both B1/B2 and F1 (not used yet) visas- Can I change status from B1-B2 to F2 without leaving US ?

Yes, you can apply for a change of status without leaving the US.