So a better metric IMO would be to weight the outcome with the % gain in value by the flip.

What is the way to do this so it's 100% safe to support weight?

It looks nice and is pretty durable with very little upkeep.

Or hearing it but not giving it too much weight. 

I'm satisfied with what I have now because I'm pretty heavily weighted in directly owned properties.

I will be maintaining everything within arms reach in the future and no longer trusting PMs to any aspect of upkeep.  

Also you get no pass through tax benefits like depreciation anyway on these investments.You should never own actual rentals where you are responsible for upkeep and costs in an IRA because you have to use only IRA funds for all repairs etc and theoretically that's an unlimited number.

The smart investor considers ROI, Time to Deal, Ease Of Deal, Set-up Effort Per Deal, Continuous Effort Per DealTime Invested Per Deal and others.I call these "the decision factors".When you take all these into account you can write up an equation where you assign a "weight" to each of these decision factors.

The other option is to find your very own private lender (essentially just a person that has a large amount of cash themselves) and partner with them for the purchase or try to convince them to lend you money their money for similar terms as an HML except they do 100% financing.Either ways, run the numbers and weight out the costs and benefits.

20 x 20 would be 400 .Sometimes carports don't have the best roofs,  They need to be beefed up with extra supportto take on the extra weight of the conversion.