The long answer: not for the faint of heart or the risk adverse.  

I know at the heart of it that "profit = revenue - expenses", but what exactly can count as an expense?

I appreciate your warm welcome.Best Wishes,LaTisha

@Natalie Davidson I agree whole heartedly with @Scott Seaman While south Florida (Sarasota to Naples) population changes dramatically with the snow birds, as evident when you try and drive down the Tamiami Trail in January. 

I am writing this to let you know, sometimes you just have to have a little faith in life that there are some really good people still left in this world that genuinely want to help you achieve your goals and dreams out of the goodness of their heart.

One misstep and you can get into a lot of trouble, if the tenant gets one of the bleeding-heart pro-tenant attorneys.So, as was suggested to you, hire a pro to do the eviction process, so that everything is being done properly.

And, to keep warm, they are going to run space heaters in the trailers, so the electric bill goes go over $100/mo.

Thank you to everyone for the warm welcome. 

Thank you all for the warm welcome!

In that case, you have to hope you're getting good advice from someone who has your best interest at heart.