Have a think about what will or won't be acceptable to you, for example:
- Pets: acceptable? Inside and outside? Outside only? Not at all?
- Smoking? Ok or not?
- do you have gardens? If so, what about maintenance of the garden? Who's responsible?
- Do you have a pool or anything else special like that?
- What sort of rent would you like? How do you want it paid? Frequency?
- who should the tenants contact in case of emergencies? As in maintenance emergencies, not medical! If the PM calls a plumber/electrician/whatever, it'll cost you a bomb, where if the Professor is sort of handy he might be able to fix some of the smaller things that happen.

Just a few things to think about.

I hope you get good tenants - ours are excellent It's a BB person so I kind of have to say that in case she's reading this Nah j/k she's pretty good!