There are a couple of key questions to ask that can make a difference in reaching your goals on this property. 

Does the supra box/key work in both markets?

But it might possible to get a list of homes that have city or county violations and that will sometimes be an indicator that property is vacant. 

Triplex or larger is key because then your other units pay your entire mortgage and you’re living rent free.

Then first month when giving keys.

That was my first indication that things were cooling.

You can get good deals on turn key properties if you find a motivated seller.You do your due diligence same as any other property.

@Srini RamkumarYou gotta know your numbers because projections from turn-key providers are full of rainbows and cupcakes.

Whereas you would ordinarily indicate earnest money, down payment, financing and total purchase price... in an owner finance deal you would spell out the exact financing terms such as:Seller agrees to finance $x of the purchase price at y% interest over z years, secured by a first lien deed of trust.

the key here is to make sure that you and your wife are subsequent beneficiaries of her part of the trust.