Could you let me know which resources or websites you've been utilizing to discover these types of deals online?

That's an ENOURMOUS amount of trust/money to put into a stranger's hands.

Can you explain what the benefit is to a property owner to have a literal stranger sublet their house to a whole bunch of other strangers and pocket the difference in rent?

In the advertisement on BP podcast they exclaim that they will drive up the rentals and that you will have a low vacancy rate. this is 100% true. i have been booked solid since may. however. last month it cost me $500 to let strangers stay in my house and this month i might break even. 

You can do this online by looking at their catalog. 

A fun thing I do: I host board games night every week to meet and connect with strangers. 

All of this should be public information and posted online.

My question is, for the unit I am moving out of, what’s the best company to use for online applications, tenant screening, background checks, credit pull, etc. ?

if a seller is not workable over the phone, we do not load up in our cars to go spend the day with total strangers that have pie in the sky daydreams a buckets full of cash from the sale of their house.

So what your telling me is you would not take the advice of some random stranger to make the biggest financial decision of your life?