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John R. McGuire & Associates

Welcome To McGuire Law Firm

At The McGuire Law Firm, we understand the vital role that knowledgeable legal guidance plays in protecting and growing your business. As a leading Denver Business Attorney, John McGuire and his team are dedicated to offering comprehensive support that addresses each client’s unique objectives. From the initial stages of setting up a corporation or LLC, to ensuring ongoing regulatory compliance, The McGuire Law Firm’s strategic approach helps local businesses thrive in Colorado’s dynamic marketplace.

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Denver Business Attorney

About McGuire Law Firm

At The McGuire Law Firm, we focus on delivering strategic legal guidance that empowers businesses throughout every phase of their journey. Founded by attorney John R. McGuire, our firm emphasizes practical solutions in key areas of business law—whether you’re forming a new entity, expanding operations overseas, acquiring or selling an existing company, or seeking support for ongoing transactions.

  •  Since being admitted to the Colorado Bar, John has worked on a wide range of corporate matters, including structuring partnerships, disposing of business assets, and managing essential day-to-day agreements. By combining this hands-on experience with personalized advice, we help clients build a solid legal foundation that positions them for sustainable growth.                                                                                       
  • While our scope also includes tax-related counsel and estate planning, business law remains at the core of our practice. Our team is dedicated to alleviating the legal complexities that accompany ownership transitions, contract negotiations, and organizational expansion. By choosing The McGuire Law Firm, you gain a trusted partner committed to protecting your interests, optimizing your operations, and supporting your long-term success in the competitive Colorado marketplace.
Experts In Tax Law

Areas Of Concentration

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Individual Taxation

In addition to assisting clients with their IRS matters, a tax attorney at The McGuire Law Firm can assist you with your individual tax questions and issues that impact your individual income tax returns.

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Business Taxation

Many tax considerations must be made as your business operates and regarding the eventual sale of  business interests, your business as a whole and the business assets.

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Gift & Estate Taxation

The disposition of your property whether during life (through a gift) or at death requires proper tax considerations and planning.

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IRS Matters

We  assist clients in resolving IRS debts, audits and other matters, as well as applying the tax laws to our client’s individual and business issues.

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Business Law

The McGuire Law Firm will advise clients who are just forming their first business to businesses and business owners that have been in business for many years.

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Estate Planning

Your estate plan will outline how you will leave your assets to your loved ones.  It does not always matter what you leave, but how you leave it!

Free Consultation

Contact McGuire Law Firm today for general inquiries.

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    Our Expertise

    Why Choose The McGuire Law Firm?

    We specialize in Business Law in Denver Colorado. 

    We believe that selecting the right legal partner can make all the difference in the success of your business. The McGuire Law Firm stands out as a trusted Denver Business Attorney by offering a powerful blend of legal insight, practical experience, and a genuine commitment to client satisfaction. Our goal is simple: to ensure that you receive personalized solutions tailored to fit your business’s specific needs and long-term objectives.

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    Words From Clients

    • John is by far the top tax lawyer in Colorado. I called around and many of his competitors will scare you into much higher rates, at a time your most vulnerable.

      Mike S.
    • John McGuire has been an excellent attorney for us, but he has also been a tremendous wealth of information on a variety of business issues. He is learned, thoughtful and insightful.

      Brooke S.
    • John McGuire is an excellent tax attorney. My experience with him has been fantastic. His advice is tempered with expert knowledge of tax law and how the IRS operates along with true concern and effective advocacy for his client’s position.

      Robert J.