Right now All of my real estate investments focus on investing in turn key properties and becoming a limited partner in syndications.

I completely agree: Running an ad does not place your property "in Service", which is the key point in time at which you can begin expensing your renovations rather than capitalizing them.In order to be "In Service", the house must be habitable.

What are some of the key factors to know and understand?

@Thayer Hood Any astute investor will work with people they can trust to deliver good deals.

Fast forward, yesterday with A LOT of notice our hired realtor showed up at the house to get a key from my tenant for showings.  

Study the landlord tenant laws in the community you are buying and see how much notice you have to give your tenants before nonrenewal or look at cash for keys.

We have a pro membership, created a spreadsheet to learn the key metrics, have adequate resources and high credit score.

Why are you going turn key?

There are, and truly there's not a way that's wrong- there's just a way that works for you.House prices are lower today than they will likely be at an average point in the future, and getting into action is the key to success in this industry. 

Getting on ground and visiting the city is key.