(This means measuring the replacement 1/2" smaller in both directions, and may also require a permit because you are technically changing the size of your window. 

The retrofit windows can be field measured and ordered to size.

Yes, an engineer needs to identify, count and measure the assets on the property.

You can take measures to reduce the likelihood of default, but there's no way to guarantee a buyer can or will continue to pay.Some ways to decrease this risk are: running a credit report, verifying income, looking up past payment history, seeing the buyer's outstanding debts, and calculating a debt-to-income ratio.The seller has the right to regain title through legal action, such as foreclosure or forfeiture, but this takes time and can be costly.

If you are saying that to be true, then does your property manager use proactive measures or reactive measures when there is a problem.

LOL You just pointed out another example of how using percentages as a measuring stick isn't a good way of judging the value of returns. 

Purchase cap rates are a measure of risk and really only useful in determining a potential exit price.

Nice list @Don KonipolRegarding the roadmap I would argue that having a plan you can follow that is measured and tracked properly helps a great deal too so that you're having the right conversations with the right people at the right time. 

And a correction by what measure?

I think all of those I listed and the ones I missed have their own spectrum, think high to low/1-10 ect, and you can judge any measure any idea on that scale.