However, if there IS a nest in the house, I think it would be good to have it professionally treated soon.What would my fellow landlords have done?

Most people understand things happen, it's all about how you handle the situation.Maybe take them some doughnuts or similar treat.

A couple of my worst tenants were high earners, great credit scores, and clean backgrounds.I'd just tell your friend they better buckle up because they're are in for a treat!

I would just make sure when I am communicating as a landlord that it is clear that is what I am doing and the rest of the time I would treat them as I would any other neighbor.

I think investors will be treated well working with them.

Find you a great GC and treat him well!

Be leery of treating initial cash flow as a good indicator of the cash flow over a long hold.  

Also, don't stress over making your rental immaculate UNLESS you are in an area where new fixtures, flooring, etc are necessary for the price point because it's a good chance your tenants are going to F*** it up anyway lol or put more nicely not treat your things with the same care as you would. 

Treat it like a math problem. 

You'll need to treat it much like you would an STR in that you'll need a cleaner and a handyman and someone to restock it for you, but it's absolutely doable.