I'd say the amount of time for the labor seems high.

I was relieved to hear you speak highly of his program after reading the posts before yours.

So if your replacement cost valuation on the policy is not high enough to actually rebuild the property (oftentimes this is the situation when contractors are charging premiums because they are so busy with other losses), and unless you are personally willing to pay the shortfall to rebuild the property, the insurer will only pay you the depreciated (ACV) for your loss.

The risk of property damage or a lawsuit from a dog bite is too high. 

The payments and interest are high.

Taxes : Taxes have been a brewing crisis nationwide for sometime, Chicago is another prime example of a major municipality struggling under high debt load.

We specialize in helping investors access opportunities in both residential and commercial markets, leveraging our network and industry knowledge to identify high-potential deals.

And therein lies the risk of high-leverage.  

Highly doubtful that there is a NNN lease equivilatent for residential properties.

Also in many areas prices are very high.