I have misdemeanors such as a possession of marijuana, larceny, and failure to appear. Does that ruin my chances of citizenship?

Yes, and you believe you know that. While a simple misdemeanor on it's own may not necessarily ruin your chances, a second and possibly third...

My ex-girlfriend moved into my house a few years ago and she's never contributed towards the mortgage.

obviously there must not have been any expectation or clear agreement for her to contribute. At this point, I don't see this mother moving out and...

I changed locks on my rented house, gave landlord a copy, what happens if i don't give my ex boyfriend copy of key?

Will need more information. If you are primary and sole lease holder, then the apartment is yours, and up to you to invite the guests of your...

Would certainly need more information for this one. Of course any one is free to sue who they want. But don't see how and why. You say you got...

If no objection waiver for J1 research scholar gets denied, can I still apply for J1 alien physician or not anymore?

Once the J1 no objection waiver is denied, then you can't proceed with the H1 Certainly a need for counsel.

My EAD/AP renewal application reached USCIS in Nov 2014. Received card last week with only EAD and no AP endorsement.

Yes. You are doing the right thing. However, I suggest an Info pass appointment if you hear nothing after the phone call, before you mail your...

Who's eligible fill I -760 form.

I will assume you mean Form I-765? Yes, a refugee, and their spouse and children can file for employment authorization, I-765 form