Hello, I'm interested in doing a LLM program in Corporation Law in NYU or International Business and Economic Law in Georgetown.
I'm from Spain and i have a degree in law and another degree in business administration and, currently, I'm doing a master in business and taxation law in Spain. I have a 111 in TOEFL IBT. My grades in the law degree are not very special (2,04/4) mainly because I was doing two degrees at the same time. Do I still have chances to get accepted in any of those schools?

What's your class rank? The grades seem low from an American perspective, but rank is a better measure anyway (if your programs rank, of course). Georgetown's and NYU's programs have relatively large enrollments, however; you don't need to be the first person they admit, the last admit is just fine. You have little to lose by applying.

I just realized that the grading system in Spain is completely different to the one used in certain universities in the USA. For example with the LSAC my grade would go to 3.00. According to other grading equivalence systems also used my grade would go to 3.33. That's much better, isn't it?

Much better, mi amigo/a! In the USA, a trained monkey could achieve a 2.04 GPA. (Anything lower than 2.0 is failing, so someone with a 2.04 barely graduates). A 3.00 or 3.33 GPA is much more respectable.

Still more important, however, is your rank. It's all relative, as they say.

I also can get a recommendation letter from a US District Court Judge because of a intern I did with her 3 years ago. Would it be a good letter?