And I measured the appliances on the showroom floor to specially pick ones that would fit through that door.

I would also recommend keeping a small toolkit in your car - especially a tape measure and flashlight! 

While I know the 50% rule isn't always a direct measurement of things, for this purpose I am going to assume it is.

You should try to search on the forum to get an a feeling on how others are proceeding.Knowing that your upper limit is quite high, now you need to gauge what's the minimum amount that you think they would accept as compensation, add a couple of % for good measure and go with that.

I even go so far as to give measurements of the bedrooms in the videos.  

@John Gregg - I would consider cash on cash returns as a metric to measure the deal and it can be anywhere from 10-20% initially.

What you have are wholesalers that can not demonstrate any acceptable level of expertise in real estate, no real measurable knowledge of law, title rights or any other aspect of what they may be involving a buyer and seller in.

I had JUST read an article about the lackluster response for home alarms and that it's measured in half hours not minutes, so I knew I had time to continue changing the litter box and then getting out of there before having to explain myself to the police.

If this is a questionable neighborhood you could take measures to improve security and make tenants feel safer and draw more tenants.

I did run into the agent at the building with a tape measure walking around it.