In response to: “do law schools really let you reschedule classes and where do these people live if they arent married and is there a frum community at all these schools. (Obviosly NYU and Columbia) “
There is probably a frum community at every major university in America. In general, the lines become blurred between “modern” and “hareidi”. It won’t kill you daven at a minyan with people who disagree with you about Israeli politics (which is the major difference between the two camps). If you go away from home, you will probably want to rent an apartment near the frum community, rather than live on campus. Commuting has its own issues. Anyone who thinks college is for partying will have dropped out long before graduate school. If someone wants to go off the derekh, there are a lot easier and cheaper ways to do do than to go to Harvard. If you are going to school and living with your parents or spouse, the extent of Jewish life on campus is laregly irrelevant since as is the case with most commuters, you remain a part of your home community. If you go to a place with a small community, you’ll find that the smaller the community the friendlier they are and the less importance is attached to modern/hareidi issues. In all fairness, there are virtually no universities worth going to in cities that lack a kosher shul and a mikva.
Rescheduling exams is protected by law and custom. For classes you sometimes can get a record, or can borrow notes – few teachers take attendance, and in many ways the only importance of class at that level is to know the teacher’s opinions on the subject matter. Missing a few classes is hardly an issue. There are many minoritity groups in universities, and American universities have a strong tradition (going back over 50 years) of being accommodating to all minorities. Even when elite universities had Jewish quotas (meaning before the Civil Rights Act of 1964, though most school had already abolished them before they became illegal), rescheduling exams for religious holidays wasn’t a serious problem (as opposed to getting admitted).