I have worked for several of these companies over the past ten years and have the inside scoop on all the major tax resolution companies in Colorado.
For the 411 on these companies: http://taxresolutionincolorado.blogspot.com/2010/05/blowing-whistle-on-colorado-tax.html
If you need any additional information on these companies I'd be more than happy to tell you the truth. My email is [email protected]