Well, from what I've seen so far, no university demands additional tests from international students for LL.M. programs. I checked websites of 20 or more universities and the only test requirement that I've seen is TOEFL (minimum ranging from 88 to 100 pts for IBT, depending on university). Either the information is concealed somewhere, which I doubt, or TOEFL is really the only required test for foreigners from non-English speaking countries. And that's great news