The key with turnkey (and you will see myself and other old pros harping on this endlessly) is to find a provider you trust to stick with you for 10+ years.

As most things, key is buying right and ensuring that you have the right relationships to do so. 

Many have posted a few great tips already, that's the cool thing about this forum ;-) That said, I highly recommend using the awesome tools provided here on BP to learn the basics of analysis and underwriting.A few tips to get started and your continued learning:Find and connect with other BP members that are in your area.Set up keyword alerts to be notified of the topics that interest you.Read Beginner’s Guide.Check out BP Podcasts.Find upcoming real estate events and meetups near you.If you'd like to tag someone in the conversation, type @ followed by their name and then select the name of that person that appears below the comments box.

I'll be sure to set up the key word alerts.

I think you are referring to "cash for keys," be it through a formal rent control method,  or through ad hoc agreements with the tenants (cash and free rent for "x" period of time, etc..).

I hope to find turn key properties but if I can get fixer and upper one for a good deal, I'll get it.

The key is consistency.

They Key is to first have a good team on the ground you can trust, and know that they are capable and have experience in Rehabbing properties to good standard. 

The seller's (Owner's) relative who managed this property is not surrendering the keys to the seller.

NOT all of them are bad (there are some great ones out there), but I can see how a turnkey operation where people buy blindly, could be an opportunity for bad operators to take advantage. just read the Morris invest threads to understand your concern on quote un quote turn key.