I sold my company two years ago and I'm looking for investment opportunities in the real estate space, specifically single-family houses.

I had to look it up but it looks like they are selling it from an inclusive package experience for the renter. 

The tenant left with a not so clean house. 

If it is a duplex then I comp it like a house with an ADU.

When evaluating potential properties, consider three exit strategies: if you can sell quickly for a profit, hold it as a rental, or take a loss.

You can make house hacking work anywhere, really.

I’m fairly new to REI and looking to learn more about house hacking, fix and flipping, and fonding renters.  

What we learned, through quite frankly our own difficult times, was that no one sells a well performing property if it comes without a headache. 

Since you’re already diving into BiggerPockets, focus on clarifying your investment goals (house hacking, multifamily, or BRRRR), building your network with experienced investors and lenders, and most importantly, taking action by analyzing real deals.

Looks like they're trying to sell lending services through their app.