There are variations in design, features, upgrades and so on. 

I also need to mention he hasn't been to trial yet, so we don't even know if he's guilty of the accusations. 

Your description reads like you are creating a dozen variations of you.

I think that you're correct: in this interest rate environment, small variations in costs like the ones you've mentioned can easily eat up your cashflow.

I would suggest watching some youtube videos, come up with your own variation of someone elses script and practice it until it sounds natural.

I would mitigate through trial and error and as much common sense as possible. 

I heard that the waiting time for a court trial is 5-6 months and another 2 months for having the sheriff to remove the tenant (only one police office in the whole city of San Diego to execute the writ of possession now).

You could read 100 books and still need to learn more because certain things must be learned through trial and error.

I have the bright investor free trial.

It is true that the colors are similar being variations of teal and orange, but so are a lot of companies.