William Greco
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William Greco Email & Phone Number

Associate Attorney at Kostelanetz LLP
Location: Washington, District of Columbia, United States 9 work roles 3 schools
1 work email found @kflaw.com 2 phones found area 203 LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email w****@kflaw.com
Direct phone (203) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Associate Attorney
Location
Washington, District of Columbia, United States

Who is William Greco? Overview

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Quick answer

William Greco is listed as Associate Attorney at Kostelanetz LLP, based in Washington, District of Columbia, United States. AeroLeads shows a work email signal at kflaw.com, phone signal with area code 203, and a matched LinkedIn profile for William Greco.

William Greco previously worked as Law Clerk at United States Tax Court and Summer Associate at Spiegel & Mcdiarmid Llp. William Greco holds Doctor Of Law - Jd, Cum Laude from Harvard Law School.

Company email context

Email format at Kostelanetz LLP

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{first_initial}{last}@kflaw.com
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AeroLeads found 1 current-domain work email signal for William Greco. Compare company email patterns before reaching out.

Profile bio

About William Greco

DC-based attorney representing high-net-worth individuals and closely held corporations at every phase of tax controversy, from Exam to Appeals to litigation. Also advises clients on coming into compliance before audits begin. Experience drafting dispositive motions and other court filings, as well as protest letters and applications for whistleblower awards. Have handled cases involving conservation easement donations, foreign asset reporting, in-bound taxation of controlled foreign corporations, and cryptocurrencies.Former clerk of U.S. Tax Court and alumnus of Harvard Law School's low-income taxpayer clinic.

Listed skills include Microsoft Excel, Microsoft Word, Powerpoint, Intranet Quorum, and 3 others.

Current workplace

William Greco's current company

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Kostelanetz LLP
Kostelanetz Llp
Associate Attorney
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9 roles

William Greco work experience

A career timeline built from the work history available for this profile.

Associate Attorney

Current

Washington, District Of Columbia, United States

Defending client in district court over collection action for willful FBAR penalty. Drafted answer to complaint, discovery requests and responses, and motion for summary judgement. Sat first chair taking deposition of IRS employee. Coordinated preparation of expert report with client’s accountant.Advising client on whether his CFC was engaged in a U.S. trade or business earning effectively connected income. Analyzing company records and regularly communicating with company employees to formulate recommendation on how to report CFC's income for prior years.Drafted protest letters disputing proposed adjustments and penalties relating to foreign gift reporting and alleged syndicated conservation easement donation deductions.Representing pro bono client to request audit reconsideration of assessment of tax on income from 401(k) distribution.

Sep 2021 - Present

Summer Associate

Washington D.C. Metro Area

Conducted research and wrote memos on issues pertaining to the firm’s representation of states, municipalities, and publicly owned companies in matters relating to federal energy and aviation regulation.Reviewed, edited, and summarized comments submitted to the Federal Energy Regulatory Commission discussing proposed changes to rules about subsidies for public utility companies.Drafted Motions to Intervene in Federal Energy Regulatory Commission proceeding on behalf of clients objecting to request for subsidies by developer of hydropower project.Observed negotiations between investor-owned utility company and multiple public-interest organizations to set electricity transmission rates.

Jun 2019 - Aug 2019

Intern, Civil Division

Washington D.C.

Conducted research and summarized findings and analysis on developing areas of law, including the impact of recent Supreme Court decisions on the scope of discovery in FCA suits and warrantless searches of electronic devices.Drafted Motion to Suppress Subpoena in relation to qui tam FCA case in which defendant to underlying litigation requested discovery of privileged documents from the government.Drafted Motion for Summary Affirmance in relation to FOIA case in which plaintiff had failed to exhaust administrative remedies.Observed depositions and witness preparation sessions in advance of trial and advised attorneys on areas for additional inquiry.

Jun 2018 - Aug 2018

Paralegal

1101 15Th St, Nw, Washington, Dc

Prepared and filed H-1B, L-1, E-2, O-1, and immigrant visa applications for foreign nationals.Analyzed job descriptions and professional histories to write letters of support arguing for clients’ eligibility for various visa classifications.Communicated with clients to request documents and provide updates on the status of cases.Maintained documents for and tracked professional recruitment processes relating to permanent residency labor certification tests.Responsible for up to 80 cases at a time.

Jun 2015 - Jun 2017

Office Assistant

3700 O St, Nw, Washington, Dc, 20057

Acted as first point of contact to provide information about the campus fitness center’s services.Opened and closed the office to ensure all transactions were accounted for and cash was secure.

Sep 2012 - May 2015

Intern

1501 K St, Nw, Washington, Dc, 20005

Contributed to the launch of new software to more effectively track inventory of office supplies.Digitized records to consolidate office space.

Jun 2014 - Aug 2014

Intern

700 Pennsylvania Ave, Nw, Washington, Dc, 20408

Update and edit various agency documents to reflect changes in relevant Executive Orders and reporting requirements for executive agencies and private companies that handle classified information. Documents include a QuestionPro survey, Microsoft Word documents, and an Excel spreadsheet. Also assist in preparation for meetings between ISOO, executive agencies, and private industry and attending those meetings.

May 2013 - Aug 2013

Intern

District Office Of Rep. Rosa Delauro

59 Elm St, New Haven, Ct, 06510

Record constituents' opinions on legislation and requests for assistance with federal agencies and write letters updating constituents on their cases. Research and report on various agencies, programs, funding sources, and other state and federal services. Attend meetings of Congressional staff and local government and business leaders.

May 2012 - Aug 2012
3 education records

William Greco education

Doctor Of Law - Jd, Cum Laude

Activities and Societies: National Security Journal Federal Tax Clinic Harvard TaxHelp Journal on Legislation

Bachelor’S Degree, Political Science And Government, Summa Cum Laude

Activities and Societies: Philodemic Society (Weekly debate society) GU Symphony Orchestra

Education record

Guilford High School

Activities and Societies: GHS Theater Arts GHS Symphony Orchestra National Honor Society Student Senate National Latin Honor Society.

FAQ

Frequently asked questions about William Greco

Quick answers generated from the profile data available on this page.

What company does William Greco work for?

William Greco works for Kostelanetz LLP.

What is William Greco's role at Kostelanetz LLP?

William Greco is listed as Associate Attorney at Kostelanetz LLP.

What is William Greco's email address?

AeroLeads has found 1 work email signal at @kflaw.com for William Greco at Kostelanetz LLP.

What is William Greco's phone number?

AeroLeads has found 2 phone signal(s) with area code 203 for William Greco at Kostelanetz LLP.

Where is William Greco based?

William Greco is based in Washington, District of Columbia, United States while working with Kostelanetz LLP.

What companies has William Greco worked for?

William Greco has worked for Kostelanetz Llp, United States Tax Court, Spiegel & Mcdiarmid Llp, United States Attorneys'​ Offices, and Fragomen Worldwide.

How can I contact William Greco?

You can use AeroLeads to view verified contact signals for William Greco at Kostelanetz LLP, including work email, phone, and LinkedIn data when available.

What schools did William Greco attend?

William Greco holds Doctor Of Law - Jd, Cum Laude from Harvard Law School.

What skills is William Greco known for?

William Greco is listed with skills including Microsoft Excel, Microsoft Word, Powerpoint, Intranet Quorum, Research, Editing, and Higher Education.

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