However, there are multiple documents that emphasize that all 1245 property determinations must be factual and supported by corroborating evidence.

@Chris KellyFind an on-site 3rd party to corroborate.

Santarelli presents in the videos and investor offering materials with objective, and independent sources in an effort to corroborate, significant discrepancies are revealed.

Can anyone corroborate this?

Is there any other sort of documentation that might help besides other neighbors corroborating?

We've been to 38 of the big 63 National Parks; both Hot Springs and Broken Bow, which kind of cater to that same crowd, ever seemed appealing enough to visit.It doesn't mean that they are bad places to invest, but the anecdote needs to corroborate the data for me to want to cut a check and stress out for several months hoping it will work.

The IRS expects your cost seg report to be "factually intensive", "supported by corroborating evidence" and performed by a "qualified individual.”

Maybe a work-around could be showing "bank statements" that go back 2 years that corroborate your 1099 earnings? 

You'll file the note to be 70% based on the market value, which should be corroborated by the appraisal. 

My best advice is to make sure you talk to people who know what they're talking about to corroborate crucial info.Clearly, you have figured that much out already since you ask in the forum.