I have access to some very helpful databases as well, although the definitive last word should be the listed owner in the County Clerk's office.  

You won't necessarily have access to all the stats that you need to make an informed decision to purchase however it's great if you are out and driving around and see something.Best bet is to establish a relationship with a realtor that understands your long term objectives, we can give you everything as we have access to the Ontario MLS database as well as land titles.

Looking to purchase properties at Colorado public trustee foreclosure auctions which are either held in person or online, but funds/financing for the full purchase amount are due immediately or within a few hours upon close of the auction.Are there any lenders (hard money, private capital, etc.) that provide loans for foreclosure auctions in Colorado that would enable you to finance your bid at the foreclosure auction? 

Keep in mind these system just check a database.

It does all of our tenant management, ACH payments, database on properties AND the book keeping.

All info was used, then it make it a simple easy transition to enable the deal to fruition.

And it also may enable you to buy in very up and coming areas as well which would be great to hold.

Tax sale resources has a fairly decent database (it is comprehensive, but the user interface is a little off) of real estate tax delinquencies. 

The only upside to owning in Naperville is that after economic downturns, it has bounced back and appreciated more/sooner/quicker than the surrounding areas—which would enable you to sell and get into areas that are not yet coming back with more money in your pocket.

Many tools that enable and protect investors are available digitally now.