Fair Housing Laws Question - College Rental

[Jake Sablosky]

Howdy! 

I am closing my first deal in a few days, a 4-plex on a college campus, and I want to learn more about the tenants I will be inheriting. I assume they are all college students but I'm not 100% sure. They all have long term leases that end in late summer/early fall 2020. I am hoping to put together a short survey for them to fill out asking things like:

• Are you currently enrolled in the university? 
• When do you expect to graduate?
• Do you plan to stay for the summer?
• Would you like to renew your lease next year? 

And so on... My question is whether there are any legal issues with this? I'm not sure if asking about education falls under fair housing laws? 

Thanks for any guidance about renting to college students in a college town!