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Mcguire Law Firm

The McGuire Law Firm, founded by attorney John R. McGuire, provides assistance with tax law, tax planning, business law, estate planning, and IRS debts and issues.

Law Practice
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Headquarters
Denver, Colorado, United StatesSource: RevenueBaseRetrieved October 13, 2026
Employee range
1 to 10Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
10 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Mcguire Law Firm do?

The firm provides legal services through a thoughtful and collaborative approach. Attorney John McGuire holds an LL.M. degree in taxation.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

What the business offers

Services & capabilities.

Legal services

The firm provides legal services for tax matters, business transactions, and IRS matters and issues.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

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BADGE PREVIEWMcguire Law Firm listed #9 on Tax research and planning firms, September 21, 2026Open the published source list.
Mcguire Law Firm

#9 Tax research and planning firms

Snapshot: September 21, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 13, 2026, September 19, 2026, September 21, 2026, September 27, 2026 and September 28, 2026. How the company lists are built.

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