Top Law Schools

I can not find this info anywhere. We are supposed to have three LORs. But how many should come from my new school? Can I have one? Or at least two LORs from my new school is a must?

Your LORs can be from anyone and will almost always be sufficient so long as you have 2-3. Some judges specifically ask for a LOR from a prof, some specifically ask for someone who knows your work outside the classroom, but specific requirements like these are exceptions to the rule.