Have you done the basic web research, reviews, testimonials process yet? 

They'll sell you info that is readily available on the web.

There are tons of other mentors on the web.

Sullivan devotes an entire chapter to this situation in her book.  

Currently work at SpaceX on the Falcon 9 team in Vandenberg SFB in California, Founder of Code Harbor, leading web development for aging industries.

They removed all their content from the web and I got an email from my coach saying she no longer worked for the company.

You have a depth of knowledge not many people have and you are devoting a lot of time to sharing a lot of it here!

It would likely be comparable to what you pay in the NE.Just google "Lexington County tax estimator" or whatever county you're interested in and you'll usually find a web tool from the County you can use to estimate the tax bill based on the previous year's assessments.There is also a law called the ATI tax exemption that can potentially lower than 6% rate by 25%.

I understand having a quotable rule helps sell books, draw web traffic, fill seminars, or get invited to talk as an expert.

I think the testimony of many on this web site would indicate there is great financial benefit from taking either of those approaches.