My first question is what kind of damage to a house can cost 50k? I have been rehabbing for years and I have yet to spend 30k much less 50. I would love to go over that with you!
Renting to students is another matter. There are different kinds of students, ones that have parents that pay for everything and ones that work. There are also different academic students, for example those that are engineering or science majors usually are not the partying kiind. Those in liberal arts tend to be more social. My suggestion would be to rent to students who are responsible and working.
Sometimes you may have several students wanting to share a house. You need to be flexible with individuals as one person moves out and a replacement comes in. I have rented by the room and charged a flat rental fee, which is another way to increase your rents per month. Demand a good deposit and make a lease with specific rules pertainig to conduct and parties.