Due diligence for a turnkey investment

[Yaniv Sigler]

hi,

As I'm in the learning process about real estate investing, I want to study the angle of turnkey investments sold by companies.

My question is what exactly do I need to know about the property when I do the due diligence to find out if it's a good buy, where do I find this information or should I use a lawyer for that? 

What other numbers and aspects of the property should I look for and aim for to purchase wisely?

I'm considering a turnkey because I want to buy it out of state (out of CA) and figure it will be less complicated if I don't need to rehab a place from long distance.

Thank you