3 different types of plumbing = hidden joints and connections behind the walls that weren't put together properly and will burst when you least expect it.

If the seller agreed to do any repairs to the property you will want to view the property prior to closing to make certain the repairs were done (and done properly).Also make certain the current tenant security deposits are transferred to you.

They need to coordinate it through closing.

My international RE experience is limited to South America, and it looks like I will need to build a forecast model from scratch to properly value the deal as the property and business are generational family-owned and the financials are not exactly GAAP compliant.   

Properly applying payments7.

My only issue is I want to make sure I am doing it properly.  

Depending on your lease, they did not give proper notice.

Coordinating material orders and deliveries?

For 10% of the rent per month, they'll usually handle everything from marketing the home, showing it, drawing up lease agreements, extensions, rent collecting, maintenance coordinating, etc. 

The point IS being friends with folks or spending a long weekend with folks is vastly different from (and you'll see a very different person when) living in close quarters with someone the next 6 months, year, or two years.Unless those folks have ownership in your property, they will never be properly incentivized to care about the home in the way that you do.