Are turnkey, hands off investing companies legit?

[John Pocher]

I’ve been checking out turnkey out of state (I live in Texas) real estate investing companies like Rent to Retirement, Sharestates, etc.  but don’t have a good feel for if they are legit.  By legit I mean actually do what they say, no hidden fees, upfront with pricing..

Does anyone have any experience with them?  Was it positive? 
I have 2 rentals in Austin and 1 in Lindale but they aren’t cash flowing very well.  I have some extra cash so I’d love to be able to invest with confidence.  
Any actual experience feedback is much appreciated!