I wouldn't try to value it unless you were an appraiser or had a deep understanding of how appraisals work.

When my property manager got in to change the locks they found trash about 4 feet deep throughout the house..... 

Apparently I didn’t dig into their services deep enough.

To answer your question directly my advice is don't jump into deep water without adequate life preservers.

Was driving for dollars when I saw this double with a bunch of newspapers outside in a decent Buffalo NY neighborhood. Sent the owner a letter and a church reach back out to me and said they had three other occupIed u...

You just have to know how to buy really really deep no matter where we are in a cycle.

Pricy items are deep foundations, elevator, windows. 

I'm neck deep in legalese as we speak!

When you write things like 'jump in the deep end' perhaps what you're really looking for is some sort of a step function. 

all three are distinctly different in form and function.roofstock is more of a MLS type system highly automated representing civilian sellers by and large and some turn key companies will list their stock on Roofstock.. its pretty snazzy however after care is between you and the PM.Homeunion has some hybrid of turnkey marketing company in the same vane as Jason Hartman Maverick Norada etc.MI is what many consider the gold standard in turn key investing.. very deep experience in the space.. and control all aspects..