FORMER IRS PROFESSIONALS. CLIENT-FOCUSED ADVOCACY.Serving clients nationwide ↗
TAX ADVOCACY
GROUP PLLC

FEDERAL TAX CONTROVERSY & STRATEGIC ADVISORY

Former IRS professionals.
Three disciplines.
One coordinated strategy.

A clear strategy for your next step.

Experience in IRS Examination, Appeals, and Collections—helping individuals, businesses, and their advisors understand their options and move forward with a clear plan.

ADVOCATE. RESOLVE. RESTORE.
THE EXPERIENCE BEHIND YOUR STRATEGY
01ExaminationEvaluate the issues and supporting record.
02AppealsDevelop a reasoned administrative position.
03CollectionsConnect financial analysis to a practical path.
INSIDE KNOWLEDGE.
FORWARD THINKING.
↗
Three founding partners.

Former IRS professionals.
Complementary experience.

Technical depth.

LB&I · Compensation & Benefits
Appeals · OIC · Field collections

A coordinated approach.

Assessment, strategy, representation,
and implementation.

EXPERIENCE AT EVERY STAGE

Complex tax matters.
A clearer path forward.

Explore how SGW supports a matter at each stage, from proactive readiness and technical review to representation and resolution.

FOR EAs, CPAs, ATTORNEYS & TAX FIRMS

Your client relationship.
Our experience alongside it.

Bring experienced Examination, Appeals, and Collections support to a difficult matter. Consult behind the scenes, work alongside our team, or discuss separately engaged representation.

Explore professional support ↗
01

ConsultCase strategy, second opinions, and technical review.

02

CollaborateResponses, protests, settlement analysis, and staff guidance.

03

RepresentA defined role under an agreed engagement and authorization.

MEET THE FOUNDING PARTNERS

Three perspectives.
One team.

Specific experience in the IRS processes your matter may involve. Explore each partner’s background and areas of focus.

Sterling Cunningham, founding partner of SGW Tax Advocacy GroupAPPEALS

Sterling Cunningham, EA

Former IRS Revenue Agent & Appeals Officer

More than two decades of federal tax controversy and operational experience, with a focus on Appeals strategy, settlement analysis, and procedural workflow.

Read full biography ↗
GNEXAMINATION

George G. Nkosi, EA

Former IRS GS-14 Senior Revenue Agent & National Subject Matter Expert

Former National Subject Matter Expert in Compensation & Benefits within IRS LB&I, bringing technical depth in complex examinations, executive compensation, and employment tax.

Read full biography ↗
William Brown, founding partner of SGW Tax Advocacy GroupCOLLECTIONS

William Brown, EA

Former IRS Revenue Officer, Senior Offer Examining Specialist & Appeals Settlement Officer

A 34-year IRS career spanning field collections, Offer in Compromise analysis, and Appeals settlement, with a focus on financial evaluation and practical resolution strategy.

Read full biography ↗

HOW WE WORK

Strategy first.
Follow-through always.

Every engagement begins with your facts, objectives, procedural circumstances, and risks. We connect the analysis to practical action.

  1. 01

    Strategic review

    Establish fit, conflicts, urgency, and the engagement scope.

  2. 02

    Issue analysis

    Review notices, transcripts, records, deadlines, and procedural issues.

  3. 03

    Strategy design

    Evaluate pathways, risks, and objectives with partner review.

  4. 04

    Representation

    When engaged, communicate with the IRS and advance the agreed strategy.

  5. 05

    Implementation

    Carry the strategy through required filings and resolution documents.

  6. 06

    Ongoing advisory

    Provide monitoring, planning, and professional consultation where appropriate.

From strategy to execution.

When needed to implement the agreed strategy, our work may include amended or current-year returns, elections, disclosures, accounting method filings, and other compliance submissions.

WHO WE SERVE

For the taxpayer.
And the team behind them.

Federal tax controversy support for individuals and the middle market: business owners, executives, closely held businesses, and growing companies, alongside their professional advisors.

High-net-worth individualsExecutives & professionalsBusiness ownersClosely held businessesProfessional practicesPartnerships & LLCsSmall & mid-market companiesPhysicians & medical practicesEnrolled Agents & CPAsTax firmsLaw firms

TECHNOLOGY INFORMED BY EXPERIENCE

TaxAdvisor360™

A structured workflow.
Professional judgment at every step.

Created by Sterling Cunningham, TaxAdvisor360 combines procedural intelligence, workflow organization, collaboration, and AI-assisted analysis for federal tax controversy professionals.

Platform subscriptions and SGW representation are separately engaged.

Explore TaxAdvisor360 ↗

CONNECTED CONTROVERSY SUPPORT

Procedural intelligence↗
Workflow & deadlines↗
Research & reasoning↗
Case organization & collaboration↗
A professional platform. A more structured process.

THE SGW PHILOSOPHY

“Tax compliance should be the outcome of sound planning.”

Our mission is to provide experienced federal tax advocacy, strategic guidance, and practical resolution support that helps clients move forward with clarity, confidence, and restored control.

AdvocacyResolutionRestorationIntegrityDiscipline

COMMON QUESTIONS

A little clarity
before we begin.

Discuss your matter ↗

PREPARE FOR THE CONVERSATION

Start with clarity.

Organize your initial discussion and explore the services relevant to your matter.

WHAT HAPPENS AFTER YOU CONTACT US

A clear starting point.

01

Share a general overview

Tell us the issue, current stage, and whether a notice shows an approaching date.

02

Discuss fit and scope

We evaluate the inquiry, consider conflicts and urgency, and discuss the engagement, deliverables, and fees.

03

Begin under an agreement

After the engagement and authorization are established, we arrange document exchange and begin the agreed work.

Prepare for your discussion ↗

LET OUR EXPERIENCE WORK FOR YOU

Start with
a strategic review.

Tell us the general nature of your matter. Our first step is to evaluate fit, urgency, and the appropriate engagement structure.

INITIAL CONTACTGeorge G. Nkosi, EA

Founding Partner

george.nkosi@gwdinsighttax.com ↗For initial engagement inquiries.

Known deadline? Include its date in your inquiry. Contacting SGW does not change a deadline or establish representation.

This prepares a draft in your email app for you to review and send. Nothing is submitted or stored by this website. Keep the initial email general; document exchange is arranged separately.