CPA Tax Director

Sean McQuarrie

sean.mcquarrie@askfrost.com

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Bar Admissions/Licenses

Court Admissions

Background & History

Sean is a Certified Public Accountant specializing in estate and trust taxation as well as planning and compliance for high-net-worth individuals. His range of expertise also includes dealings with private foundations, gift and generation-skipping transfer taxation, charitable giving and other estate planning matters.

Sean is known by clients and colleagues alike for his reliability, positive attitude, and calm, approachable demeanor. His goal is to reduce client stress through exceptional service and careful attention to a client's needs.

Sean is a graduate of the Boston University Questrom School of Business where he received his undergraduate degree in Accounting, and also holds a Master of Taxation degree from the Georgia State University Robinson College of Business. Sean is a member of the American Institute of Certified Public Accountants, the Maryland Association of Certified Public Accountants, and several local estate planning associations.

Outside of the office, Sean enjoys spending time with his wife and two young children and is a passionate Boston sports fan.

Education

Boston University, Questrom School of Business, 2010, Accounting/BSBA
Georgia State University, Robinson College of Business, 2015, Master of Taxation

Speaking Engagements & Panel Participation

Publications

Professional Organizations & Memberships

Awards and Honors

Client testimonials

Really appreciated the streamlined and prompt service.

Amber W.

Well done and very competent and professional

Carole M.

Glen and the folks at Frost & Associates are honest, knowledgeable and dedicated attorneys who are willing to go the extra mile for their clients.Their passion for the law, coupled with their unwavering loyalty to their clients makes them an ideal choice for any client in need of legal advice or representation.

Andre M.

Client testimonials

We had the pleasure of working with Frost & Associates this year to prepare and file ERC returns. Everyone from their administrative staff to their paralegals and attorneys were friendly, professional and kept us informed every step of the way. Highly, highly recommend.

Crista H.

We’ve started working with Frost Tax Law on our ERC claim that had stalled and was getting extremely frustrated with working with (or dealing with) the IRS. He was able to expedite a quick response as well as getting our claims approved and paid when I was barely able to get a response from the IRS. Highly recommend

Info U.

When you are having an issue with the IRS, you need professional help to communicate with the right person within the IRS that can help you with your situation. Unfortunately I was not able to find that person and my situation continued to drag on for months. I would communicate by letter and also attempted to use the phone but to no avail. The IRS did not quit working my case and their letters indicated they were getting stronger in demands.

I found Frost Law Firm paid a reasonable retainer, and they were working my case within days. I was very impressed with their contacts within the IRS and how they represented me. Lauren Mata was my attorney and she was very diligent, great at follow up and did everything she said she would do.

My case was settled not long ago, to my benefit as we were able to prove that our position was correct. Whereas I did not have the credibility with the IRS, Frost and Lauren Mata did. I believe I received good value for what I was charged.

Michael U.

"Great folks. Mr. Frost and Associates are professional and very knowledgeable. They helped my wife and I out with some outstanding IRS issues with a close family member."

Jeff P.

Client testimonials

Very communicative and no use of "legaleze" to describe tax situations/complexities!

Keith M.

Great communication made a troubling time easy def recommend

James G.

I found Frost Law Firm online after desperately searching for ways to expedite the long, painful process of getting desperately needed covid-19 pandemic era tax credits in 2024. Their legal team, including Hunter Scott, of this firm literally was one of my life-jackets on the fast-sinking ship of my business. Through their work with the IRS on my behalf, I had 90% of the tax credit refunds in hand by the close of 2025, which helped me turn things around. I highly recommend their expertise when it comes to the tax laws.

Allison W.

As a retired IRS Examination Revenue Agent, Group Manager and Field Branch manager I had very little coordination with the IRS Collection function. The presentation by the Frost Law Group was very enlightening and provided me with a background to identify pertinent issues and a potential resource for future client assistance. Thank you for a job well done in the presentation which was provided on the CPA Academy website. The time was well spent.

Michael-Bills M.

Sean McQuarrie

CPA Tax Director

sean.mcquarrie@askfrost.com

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CPA Tax Director

Sean McQuarrie

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Precision

Every detail matters in litigation

The difference between winning and losing often comes down to what you noticed that others missed. I don't overlook anything.

Clarity

You need to understand your options

Legal jargon clouds judgment. I explain your situation plainly so you can make decisions with full knowledge of what's at stake.

Specialties

Six practice areas, one standard

The law doesn't fit neatly into boxes, but the problems people face do. I've spent years learning what works in each arena.

Criminal

Defense when the stakes run highest

The first hours after arrest determine everything. I know how to protect your rights when it matters most.

Family

Custody and divorce require clear thinking

Family law isn't about winning. It's about protecting what matters most to you and your children.

Business

Contracts and disputes demand precision

Most business problems start with unclear agreements. I help prevent them before they become costly litigation.

Appeals

Winning on appeal requires different strategy

Appeals aren't about retrying your case. They're about finding what was missed and making it matter.

Employment

Your rights at work deserve aggressive defense

Employers count on you not knowing your rights. I make sure you do and that they're protected.

White collar

Complex cases need someone who understands

Federal charges and financial crimes require specialized knowledge. I know how to navigate the details that prosecutors rely on.

Writing

Thoughts on the law

Practical insight for your case and situation

Arrest and your constitutional rights

What happens in those first critical hours

Protecting custody when relationships end

Your children deserve a parent who planned ahead

Why contracts fail and how to prevent it

The agreement you ignore today becomes tomorrow's lawsuit

Federal charges demand specialized defense

Complex cases require someone who knows the system

Standing up for your rights in the workplace

Employers count on you not knowing what you're owed

How to win when the first trial didn't

Appeals are about finding what was overlooked before

Foundation

Decades of courtroom work shaped my approach

I've seen what wins cases and what doesn't. The difference lies in preparation, clarity, and the willingness to challenge every assumption. Your case deserves someone who knows the weight of these decisions.

Strategy that works

Every case demands a fresh look and a willingness to question everything.

Results matter most

What you need is someone who knows how to win and won't settle for less.

Direct and honest

No promises you can't keep, no strategies that don't serve your interests.

Trusted by clients across every practice area

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Criminal defense

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Family law

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Business law

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Advocate

Built on experience and honest counsel

Twenty years in the courtroom taught me that the best legal strategy is the one that works. I listen first, act decisively, and never waste time on anything that doesn't serve your case.

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Client testimonials

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Defendant, criminal case

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Insights

Legal strategy worth reading

Practical guidance on matters that affect your case

What happens after arrest matters most

The first hours determine everything that follows next

Custody agreements require clarity and foresight

Protecting your relationship with your children takes planning

Contract disputes can be prevented with care

Most business problems start with unclear agreements

Appeals require a different kind of strategy

Winning on appeal means finding what was missed

Divorce settlements should reflect your actual situation

Fair division requires someone who understands both sides

Employment disputes demand aggressive representation

Your rights at work are worth fighting for

White collar defense requires specialized knowledge

Complex cases need someone who understands the details