Biggest lesson would be to have refinanced when interest rates were low and locked in a fixed rate for longer terms without a balloon payment!

My biggest challenge right now is finding a property management company that offers rent-by-the-room leasing services.

@Matt Wanyes but... is that actually your biggest concern? 

No issues. 

Co-living is how I went from renting a room, Delivering Dominos, no savings, and not being able to qualify for a loan to financial freedom & a $2M net worth in 15 months.  

Lowe's just came out with their biggest appliance sale of the year- up to 40% off.

Yes, they will do many things better than you, but some things it's not possible for them to be as attentive and quick responding as you.Also, no one's perfect, so keep tabs on them in general.Regarding holding or selling: why did you buy this in the first place?

Mortgage notes at 12% with no headaches are the way to go.

Quote from @John O'Leary: Hi Joe,We’ve worked with several PadSplit investors to secure financing, and while these properties cash flow really really well, they do come with challenges—tenant turnover/issues and being the biggest ones.One hurdle we’ve seen is that getting financing can be tricky since PadSplit rentals are still considered non-conforming by most lenders.

No major red flags, mostly small fixes to start out and I am pretty handy.