She said it’s unfair because hairs can pass through the drain cover over time too.

I have the gray hairs to prove it 😂.

What is consistent in all of it is that you will only be able to chart your course by paying attention to two things:1.

The Book on Flipping Houses *IS* available in audio format here on BiggerPockets and on Audible as well.The Book on Estimating Rehab Costs has a *lot* of tables and charts, so it would be very hard to turn that into an audio book -- and it wouldn't be very fun to listen to...

I feel like giving the listing agent's a hair more may be the best of both worlds, but that's the most plain sighted answer. 

For example, hairs in the bathroom, bedroom and even on the bed sheets.

Hair dryer (due to electrical requirements if traveling overseas, so this would apply if you attract international guests)4.

Efrem, there are many sites and comparison charts online to do this:  Metal vs Shingle roof? 

Strike up conversation with any fellow attendee with gray hair about how they've done investing in California.

Its hair on fire usually every deal .. and normally what happens is folks start with those that advertise the cheapest they take way too long ask for way to much stuff then about a week before they lose the deal they call me needing my specialized services.