Individuals/Estates

Boston-based tax lawyers McMahon & Associates represent individuals with Internal Revenue Service (IRS) and state tax controversies, including:

  • Audits and examinations
  • Collections, liens and seizures
  • Offers in Compromise
  • Voluntary disclosure
  • Appeals
  • Litigation
  • Foreign bank accounts
  • FBAR requirements
  • Whistleblower claims

Experienced IRS Tax Attorneys

McMahon & Associates’ team of tax attorneys and enrolled agents collectively has more than 100 years of experience investigating and defending IRS and State tax matters. All of our senior attorneys and professionals are former IRS Attorneys or IRS Appeals Officers with prior experience as Revenue Agents and Revenue Officers. That means we know exactly what is involved in a tax audit, appeal or litigation and how best to negotiate with the IRS.

Our tax attorneys have had distinguished careers in the Boston and Massachusetts IRS offices:

  • D. Sean McMahon, Esq., former Senior Attorney for the Internal Revenue Service (IRS) Office of Chief Counsel and former Special Assistant United States Attorney for Massachusetts and New Hampshire
  • David N. Brodsky, Esq., 41-year veteran of the IRS Chief Counsel’s Office responsible for litigating tax cases and advising audit teams in large corporate audits
  • Jeremiah O’Sullivan, Esq., 37-year career at the IRS working as a senior appeals officer and 12 years as a professor and tax instructor
  • Paul Reska, Enrolled Agent, 20-year veteran of the IRS working as a revenue agent, offers in comprise specialist and settlement officer

Help with my tax problemWorking to Resolve Your Tax Problem

Clients often come to us confused and uncertain about how to proceed.  Whether you have just received an audit notice from the IRS or state or if you are going through the appeals process, we will evaluate your situation, help you understand your options and work with you to resolve your tax issues.

Helping Clients Navigate the Tax System

At McMahon & Associates all we do is federal and state tax controversies. When you hire us, you know you are getting an experienced tax attorney, not someone who occasionally does tax cases. Tax cases are complicated.  If you printed the U.S. tax code, it would be more than 73,000 pages long. Because 100% of our practice is devoted to tax cases, we are able to help our clients navigate the tax laws efficiently and effectively.


McMahon & Assoc. assists with estate tax planning

Boston-based tax attorneys McMahon & Associates represent large and small estates in tax controversies involving the Internal Revenue Services (IRS) and Massachusetts Department of Revenue, including:

  • Estate tax audits and examinations
  • Collections
  • Voluntary disclosure
  • Appeals
  • Litigation

Experienced IRS Tax Attorneys

All of McMahon & Associates’ senior attorneys and enrolled agents are former IRS Attorneys, IRS Appeals Officers or Revenue Agents.  Collectively, our team has more than 100 years of experience investigating and defending IRS and state tax matters. Knowing exactly what is involved in an estate tax audit, appeal or litigation means we also know the best methods for negotiating with the IRS.

Our tax attorneys have had distinguished careers in the Boston and Massachusetts IRS offices:

  • D. Sean McMahon, Esq., former Senior Attorney for the Internal Revenue Service (IRS) Office of Chief Counsel and former Special Assistant United States Attorney for Massachusetts and New Hampshire
  • David N. Brodsky, Esq., 41-year veteran of the IRS Chief Counsel’s Office responsible for litigating tax cases and advising audit teams in large corporate audits
  • Jeremiah O’Sullivan, Esq., 37-year career at the IRS working as a senior appeals officer and 12 years as a professor and tax instructor
  • Paul Reska, Enrolled Agent, 20-year veteran of the IRS working as a revenue agent, offers in comprise specialist and settlement officer

Working to Resolve Your Tax Problem

Estate tax returns are facing more scrutiny by the IRS today. In fiscal year 2012, 30% of all estate tax returns were audited. And the larger your estate, the greater your chances are of being audited.

If your estate is involved in an IRS investigation or proceeding the stakes can be very high. Our experienced tax attorneys understand the risks you are facing. We will evaluate your situation, help you understand your options and work with you to resolve your tax issues.

Some of the most common estate tax problems estates include:

  • Unreported lifetime gifts
  • Questionable asset valuations
  • Overly aggressive discounts for asset values
  • Undocumented intra-family transactions

Helping Estates Navigate the Tax System

Tax cases are complicated and the IRS is increasing its scrutiny of estates. Involving estate tax professionals in your estate planning process can help prevent your estate tax return from being audited and mitigate the risks if you are audited. At McMahon & Associates all we do is federal and state tax controversies. When you hire us, you know you are getting an experienced tax attorney, not someone who occasionally does tax cases. Because 100% of our practice is devoted to tax cases, we are able to help estates navigate the tax laws efficiently and effectively.

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The information contained in the McMahon & Associates, PC web site is solely for informational purposes and does not create an attorney-client relationship or constitute legal advice. Unsolicited information transmitted electronically to our attorneys via this web site or the Internet is not considered confidential.

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