How much are you having to pay the management companies?

I can't really house hack, as I have a wife and two kids.

On most small MF that get listed for sale, the owner lost interest years ago and management attention is in a steady decline until something triggers the sale.

Buyer go to open house directly.

What’s your game plan for managing the park — hands-on or hiring a property manager?  

For example, I wanted to buy a cheap, off-market hoarder house or fixer-upper under $X.

They are there on time reliably, do a good job managing inventory/off site laundry, and generally do a good job cleaning overall.

If you end up having a vacancy with no cash flow, it hurts much more than when you are able to offset with cashflow from your other properties.I would recommend seeing if you are able to diversify a bit with some local or out of state properties that do cashflow some, even after Property Management, that way you could start to support these homes.

Otherwise you could end up owing more than what the house is worth, which a lot of investors are struggling with now. 

After thirty years of flipping houses I can tell you that the second you trust the subs completely, things go wrong.