Most of the time though these types of agreements do not work out and you end up losing more money when it is all said and done. 

I haven't bought any homes on Auction.com but am pretty confident in the over all elements within the site.

I just found out that a rental property I own is within 200 feet of a potential new site for a fast food restaurant.

Welcome to the site!

Just substitute the state and city and you can look at different areashttp://www.jchs.harvard.edu/sites/default/files/Ha... - A little high level but does mention some states in there.http://www.usmayors.org/wp-content/uploads/2017/05... - Employment info a bit dated but aligns with the price rises seen in those states.

You can find them on Meetup site. 

You can search "house hacking" on this site. 

If I were to buy, should I hang on to them assuming I can make some sort of profit or raise the rate and possibly lose them?

Also they won't do anything with a residential component unless it is incidental to the operation of the business, like an apartment for an on-site manager for a hotel.

I want to be sure my renters aren't going to lose their jobs and will be able to continue to pay the rent.If these two conditions are met, I don't really care how leveraged I am.