Now we're seeing investors pouring money into buying Class C rentals - but, many are getting burned.In our experience & opinion, the main determinant of property Class is not location or even property condition, those are #2 and #3.

There is no reason you couldn’t do the same… so why let them make the money and give up the control?  

What’s your main focus, or what are you hoping to get out of your journey here?

Now my main issue is I need a fire detection system in a enclosed back porch that leads up to all three floors, but I don't know what's the minimum I would need to be compliant or that the fire marshall is suggesting what he wants or recommends.

We keep significant amounts of reserves in treasuries for these reasons. 

You can stack your personal 50%s up for separate ventures while still knocking out deals without your own capital2) Read Raising Private Capital by Matt Faircloth3) One LLC with the S Corp designation to pay yourself a reasonable salary from the flip profits.

I’ll agree with you in general but that is only a portion of the reason.1.  

We sold the house quite quickly at a reasonable profit.Lessons learned?

My main goal is it be able to retire at age 40 from my main job and work entirely on my real estate portfolio.

Main question in other countries is ownership and taxes.