Have you checked their rental history? 

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

@Deborah Wodell Please see  zillow history and Redfin history for that area and see if it improved in value over 10 years and then conclude whether it is worth to keep it as a rental or sell..Usually to become wealthy one should not sell Here is a great book for youhttps://www.coachcarson.com/building-wealth-one-house-time-j...

Can you qualify using employment history, tax returns and DTI?

While they do have low rates they don't have the best review history that we have seen.

Any advice is appreciated and super helpful as I just graduated high school and am just starting out with real estate!

Verifying last 2 years of rental history very important!

It doesn't matter - You as the big bad rich landlord have a target on your back and will be named to the lawsuit and your insurance carrier will rush to settle it quickly and then you'll be dealing with the long term challenges of having that claim in your insurance history. 

However, realistically.....most buyers are going to wait until after school lets out in most areas before they start looking to move so they don't risk moving their kids from their current school district. 

Here is some additional information to ensure success:First, tenant screening is critical, focus on creditworthiness, rental history, and stable income.