Unfortunately - my current lot for my primary is 1 acre and VERY sloped, and close to a water source (creek), so the county has not even allowed me to permit my downstairs finished basement without an extremely costly renovation to our septic (over $60,000, and that doesn't count demo'ing and replacing our driveway to get to the existing tank and leachfield), and even if I could permit it, it would essentially need to be a treehouse in the redwoods due to the slope (not a bad idea though, I would actually love a livable treehouse on this lot!

I’ve worked with a few tools for property intel, and while no service is 100% accurate, some options have stood out for specific use cases:BatchLeads: They offer a solid skip-tracing tool with good accuracy and detailed reports.

@Nichole StohlerI find using a SDIRA to be a great tool for passive investments and growing your retirement with less stress than the stock market roller coaster. 

If someone isn’t willing to provide ID, they are not a serious applicant and possibly a scammer, so it’s a good screening tool to weed out the tire-kickers and sketch balls.

Both properties have a substantial amount of equity that’s essentially sitting idle.Would it be a good idea to tap into this equity (through a HELOC, cash-out refinance, etc.) to fund future fix-and-flip projects or purchase additional rental properties?

My two cents is that the non-live broadcast is a commonly used marketing tool If it was "live" when it was first broadcast, then it is not a "scam" in my opinion but a rebroadcast that does not disclose that fact (not as professional as it could be).

Finally the pro formas that they provide are absurdly basic and neglect at least 25% expenses, so are essentially useless. 

We aren't the traditional flippers who run in, throw up a lick of paint, hide the disastrous side of things and essentially trick people into buying a lemon.

How much longer will it take for her to finish he cleaning and painting to her liking, while your losing rental income on the other unit by her essentially occupying 2 units?

Real estate investment can be incredibly rewarding, between the cashflow, appreciation, and tax benefits, it truly is the greatest wealth creation tool.