There have been other sponsors that have sounded interesting to me, but I usually listen while I'm driving or running and can't easily stop and write down the name of the sponsor, seems like it would be more effective advertising to list them in the show notes, or to have one page where BP lists all the podcast sponsors so you can go back to get more information.

Thoughts on the cost of this? 

EDUCATE YOURSELF - yes, it will take time, but will lead to a selection that better meets your expectations & avoids potentially costly surprises!

If you were to do a cost seg on a new property, you may just create more passive gains rather then active which you mention you are after. 

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They would most likely use your liquid assets (cash, stocks, retirement account) to qualify to make sure you have enough for downpayment + closing costs.

Along with many others I'm sure, I read "The Book on Estimating Rehab Costs" by @J.

However, one rental covers the cost of the dues ($800 give or take). 

i.e 500k (400k building+100k land cost),  with cost segregation average 400k X 20% = 80kcan 80k deduction be applied as depreciation, against his w2 income from a salaried position? 

Lead free is a different inspection and costs more.