In our situation, property managers won't likely fit into the pie since we are looking to sell the property in the open market.However, you can always leverage your "rock star" agent who found you the deal (assuming it's not an offmarket deal or from a wholesaler) to check up on the construction every so often.

You always invest for appreciation not solely, you always invest understanding it's a physical asset and requires different risk measures.

The one you can scale.I know successful business owners in the fitness industry, tanning salons, real estate, window coverings, maintenance, billboard, ATMs, etc.Generally, I would be skeptical of jumping into a business based on YouTube videos hosted by and featuring people that are likely primarily trying to sell you their respective courses.Small businesses can indeed be great investments, but they are hard.  

You are hiring the PM, but they are also hiring you, so make sure it is a good fit for both of you so you can best meet each other's needs.

I would place MUCH more emphasis on connecting with the right team than on actually visiting and getting comfortable the physical location of the market. 

Sometimes when only one bedroom is available, people fake and squeeze to fit and you end up with over-occupancy.It's really a product of your market.

OP change the numbers to fit your specific deal.  

$3/day for the fit year and then they’re free?

From the information you provided, she seems like a prime candidate to not leave the property the way she found it, and will pitch a fit over any deductions taken out of her security deposit.

It’s a great fit for investors who need quick, customized solutions for their projects.