If these kids are walking home it would not be expensive to hire someone to look at which house they are going to, (doesn't necessarily have to be a private investigator but to be clear you would be hiring them as "security" for the property not hiring them to stalk anyone) look up the parents on the county tax assessors site, and threaten a lawsuit.

If one off, then recommend you hire a local realtor as a consultant that handles CRE, and hope it is successful.2. 

Who do you have to hire or partner with to make sure the house is ready for purchase and ready to start marketing to tenants?

I intend to I hire a contractor next time to do the rehab and will move Into the position of deal finding until I can train somebody to take on that role.

Hey that’s the special cookie recipe you need to make, and then your golden, I have similar issues, prices now are like a slot machine or like an auction, they are all complaining about supply and demand, I wonder if my contractors hire Chinese people and these people are stuck on a boat in Cali because all of the truck drivers are on strike?????

I did most of the work myself and hired a couple plumbers and electricians after shocking myself a couple times.

You could learn some skills and bust that out DIY or hire contractors to do it for you. 

How early on did you all hire an Acquisitions Manager and Underwriter onto your team?

Give him a deadline and tell him if it is not done, you are hiring it and sending him the bill.

I look at the cashflow after all the fixed expenses (Mortgage, Taxes, Insurance, HOA) I don't hire a PM so I don't have to account for a 10% expense.