It's a way for them to maintain control over their material and keep their audience intimate. 

Online is a very tough way to do it.

I don't think anything anyone offers is "evidence" in court because you would be backing up your claims with documentation such as the lease, or quotes for work or material prices.

It's tough out there to make numbers work!

Some of the costs quoted shock even seasoned flippers as they are lower than even material are in many markets. 

In today's market it will tough to find a tenant at 3 times.

Great initial screening material.  

Unfortunately with those numbers it's tough to find a non-bank lender/financial institution that will lend.Usually loan minimums are $50K and the up to 75% LTV on purchase-money/70% LTV on cash-out refinancing, which basically means you need up 25-30% depending on the type of financing. 

I didn't use it, but I looked at the marketing materials.

The cost of labor , materials , property taxes , inflation , interest rates  etc .