I am just trying to shed light on what sort of consequences those things may result in so that I can be prepared.  

Also sheds some light on my training, experience and history

Also they could use light updates- paint, flooring and maybe cabinets.

But tile, lights, flooring and paint all come from Home Depot.  

This vs, an inspection report which is not from the tenant.Though during the 4 years he was there:He broke, and I paid for all the following out of my pocket.washer dryer, new garbage disposal, broke 2 drawers, broke front door security gate lock, broke front door lock, broke kitchen faucet, I re caulked bathroom, changed light switch, installed iron chair railing(because he complained after living there 3 years ), ceiling fan, toilet seat.  

Hey guys,I was hoping to get some help when underwriting deals.I've had some properties that have come across my desk, that have below market rents, and either with some better management, or light renovation there's some possibility of upward mobility in rents.The problem is they're being sold at 6-6.5 cap.

Replacing the Decking and felt the Roof, Lay all of the Flooring, Install all Cabinets,countertops,sinks, lighting,fans  , Paint the House inside and out , Replace all the Rotten wood ( inside and out ) ?  

I thought turn key meant "one and done" you pay, the property is yours (you did your due diligence and made sure the cash flow was not inflated, also have all your i's dotted and your t's crossed with eviction insurance and all that) and they manage the property for you.Is that not correct, I mean I know there "BAD" turnkey real estate companies who take advantage of people but I would think that a simple google search would give you want you need to know (I really like Morris Investing, I researched the day lights out of them (that is how I found out the 100% cash buy in) the worse I have found is that they take a while to call you back and when they do call you need to be ready because if your not they go to the next on the list and it can take them a while to get back to you with the next deal.

I'll scrape ceilings, put in LED lights, and ceiling fans in bedrooms and family rooms. 

Digging further into this will shed some light on what can be done to speed up the process.