Business Law, Taxation, Estate and Wealth Planning

Practice Areas


We provide representation before, during and after an audit, including contesting assessments, negotiating settlement and installment arrangements, resolving non-filer issues, FBAR and FATCA advisory, and where necessary, pursuing litigation.

Business and Commercial Law

We serve as outside general counsel. Services include business formation, merger/acquisition, trademark filings, reorganizations, contract drafting/review, general advisory services.

We also serve as tax counsel where we liaison with general counsel to provide tax compliance review, tax planning, and tax controversy services.

Estate Planning

We formulate and draft estate plans, business succession plans, and wealth transfer plans. Draft and implement wills, living wills, trusts, health & financial powers of attorneys. We can also evaluate documents drafted in other states to ensure their compliance with Colorado law.
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About Our Firm

The Law Office of D. Mathew Blackburn is a client focused firm that provides legal advice in easy to understand terms. We advise business owners and individuals in tax, business law, and estate planning. Whether you’re an owner looking for someone that speaks the language of business, or you’ve received an IRS or state revenue agency notice that is full of dense technical language, or you’re an individual looking for someone to explain how an estate plan can protect your family and legacy, we are here to help.

Latest News

So, we keep using this word controversy. Tax controversy is a cool way of referring to the practice of law involving disputes between tax collection entities such as the IRS or state tax agencies, and taxpayers. So why can’t you just say litigation like all the other attorneys that go into a court room? Because with tax there’s […]


Sometimes you know you owe tax to the IRS. Even though you know you owe the amounts your financial situation puts you in a position where you just cannot pay the amounts owed. One option you have available in this situation is referred to as currently not collectible status or CNC. If you can prove […]


You some options. First verify their adjustment is correct. The people at the IRS don’t know everything and the vast majority can barely do their job. A huge part of my job is going to the IRS on behalf of my client and proving their position is incorrect and my client doesn’t owe any additional […]