If the comparables in the area prove that a multi unit makes sense, then I compile some similar properties and figure out what was built: Area, materials, number of units etc.

My question is if there ever comes a time when the savings are compiled enough to where it’s no longer necessary to take out this percentage of rent any longer.

I kind of had to overcome my background in finance, compiling metrics till the cows came home.  

You should be doing your own comps to ensure accuracy.That said, we've compiled a directory of these online sites for those of you who want to get a baseline average before getting out there and doing your own DD:http://www.biggerpockets.com/house-value-comps.html

The answer is yes, but you will need to pay for the data.A good friend woks for a company based here in Denver called Blackbox Logic LLC, and they are not the only ones that offer a service like theirs.The use crawlers and compile recent data, and offer this data at a fee.

I am really considering starting some kind of small business providing some of the training on finding and funding good deals by compiling the many ways that i found deals, and what led to them.

Since you'll be doing some research to compile a list of people to call, this could be an extra layer of long-term team & relationship building, if you will be hiring professional property management for your portfolio.I chose this model when I was seeking these members for my team and have loved the trustworthy relationships that have been built from it.

Even though info is free like you said, they do a good job in compiling info and auction dates/format links to help keep you organized.  

I have been compiling a list from craigslist of the rental properties in my Chattanooga zipcode. 156 SFH propeties.

Hi,I am interviewing with a couple of brokerages tomorrow and am trying to compile a list of questions to ask to see which brokerage is the right fit for me.Is there anything I should definitely ask to differentiate between brokerages?