The other big issue I see with brokers, they don't even know what data to collect.

A master suite addition will get you a whopping 59%.Any seller needs to know the market value of the property "As Is" and "After Renovation" to see if there will be any money in the proposed renovation.Check out this link for more information: http://www.remodeling.hw.net/2011/costvsvalue/national.aspxIve seen their data before - it quotes a new "midrange" kitchen at $57k.

I can point to data point after data point to show you with confidence this is accurate.

Sure, you can pick data apart and find exceptions to anything.

i thought it might be slightly harder than just going on a county website and having the data pop up.

It can be time consuming, and it sounds like you've already been working along that line, I'd be trying to get as much data as possible.

If the owner's address is that of the vacant property than you need to find another avenue to get updated contact data on the owner.

This is a tough skill and you need a lot of data that's not easily accessible to do it well.Then you need to be able to accurately estimate the repair cost.

His comps pull data from Sheriffs sale which if you are not familiar with that, it's what the loan amount is for from the current owner and NOT WHAT the house sold for!

All I do is digitally sign what they send me and I'm done.With all the above being said, I did want an online way to handle my property management and I couldn't justify the higher prices of the main/usual property management sites and to be honest, I want control of my data, not on someone else's servers.