Personally, I am not a Detroit guy, just pointing out actual facts.

I have 7 doors personally and another 4 with a partner in a two member LLC.  

My personal investment philosophy would avoid leveraging my primary residence unless I had plenty of reserves to ensure I would be covered in that kind of situation.

Key differences for us include:- we JV with local person on our deals.

Is that based on an actual study or your personal experience?

It's allowed me to do some of my own work like changing toilets and fixing leaking ceilings, but even if I don't want to do a job personally hopefully I'll have enough knowledge to not let a contractor over charge me, or recommend something I don't need.You'll also meet local contractors, and hopefully investors.They may offer an employee discount too.

This person is eating up your time and sanity.

Most agent wants to sell under my personal name and add my LLC name which is the beneficially of my land trust as a additional insured which do not make sense since the property title under the land trust.  

If you can't keep control of your personal finances, you are highly unlikely to succeed in real estate investing.

The majority owner should be required to sign reps & warrants at closing to be personally liable for them.You didn't mention checking the plumbing - hidden plumbing leaks can cause more damage over time than just about anything else!