Did you try searching for this topic in the forums, or on the BP site? There are hundreds of reviews & threads where investors are asking this exact same question & discussing their experiences. I've posted some links below that will take you to BP forums where people are answering the same question you are asking.

https://www.biggerpockets.com/users/ZacharyCole/references

https://www.biggerpockets.com/forums/92/topics/518583-feedback-on-renttoretirement-and-zach-lemaster

https://www.biggerpockets.com/forums/92/topics/765347-rent-to-retirement-review

https://www.biggerpockets.com/forums/850/topics/895660-my-first-investment-property-an-out-of-state-deal

https://www.biggerpockets.com/co/RentToRetirement

https://www.biggerpockets.com/forums/92/topics/893621-rent-to-retirement-review?highlight_post=5222888&page=1#p5222888

https://www.biggerpockets.com/forums/311/topics/915728-experience-with-rent-to-retirement-turnkey?page=1#p5345200

https://www.biggerpockets.com/forums/92/topics/808479-rent-to-retirement-experiences

https://www.biggerpockets.com/forums/12/topics/533693-anyone-worked-with-renttoretirement-turnkey

https://www.biggerpockets.com/forums/92/topics/581730-rent-to-retirement-zach

https://www.biggerpockets.com/forums/48/topics/874096-reviews-on-r2r-and-nch?page=1&utm_source=Iterable&utm_medium=email&utm_campaign=Transactional:%20topic_notification&utm_content=Transactional#p5123754

https://www.biggerpockets.com/forums/311/topics/883772-turnkey-investing-renttoretirement-feedback-reviews?highlight_post=5171720&page=1#p5171720