I am a professor at a US university, and I'll be away on a sabbatical for all of the coming academic year. I would like to sublet my house while I am away, and I think that one or two of the graduate students in my department might be interested. I'd prefer to do that instead of renting to a complete stranger. However, since I would effectively be their landlord and they would be paying me rent, I am wondering if this raises ethical or conflict-of-interest concerns, since those students may be in my courses in the future.
(I have checked my university's regulations and they do not address this situation. I would certainly check with my superiors before going ahead; this question is just to find out whether this seems okay in terms of general professional ethics, or presents the appearance of a conflict.)
Some possibly relevant notes:
My department's graduate program is not in my research area, so there would not be any chance of me becoming the dissertation advisor of any of these students. However, I could serve on their dissertation committee.
The sublet would end before I would be teaching classes again, so I wouldn't simultaneously be a student's landlord and their instructor. It is conceivable, though, if they fell behind on the rent, that they might still owe me money at that time.