General Counsel
CurrentSenior legal executive working cross-functionally with teams across business development, operations, finance and accounting, marketing, and human resources.
Dec 2023 - Present
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John Casterline Email & Phone Number
Experienced General Counsel, Legal Executive | J.D.
at
Global Guardian
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✓ Verified Jun 2026
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Profile completeness 86%
Current company
Role
Experienced General Counsel, Legal Executive | J.D.
Location
Fairfax, Virginia, United States
Company size
Who is John Casterline? Overview
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Quick answer
John Casterline is listed as Experienced General Counsel, Legal Executive | J.D. at Global Guardian, a company with 54 employees, based in Fairfax, Virginia, United States. AeroLeads shows a matched LinkedIn profile for John Casterline.
John Casterline previously worked as General Counsel at Global Guardian and General Counsel at Arch Amenities Group. John Casterline holds J.D. from University Of Virginia School Of Law.
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Global Guardian
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Profile bio
About John Casterline
Entrepreneurial and effective senior legal executive with over 17 years of experience advising leaders and departments on a wide array of strategic business, operational, compliance, risk management, finance, and employment matters. Expertise in contract drafting and negotiation, contract management, strategic planning, post-acquisition integrations, compliance, and employment law. Leverages experience to resolve complex operational issues efficiently and improve processes. General Counsel to Global Guardian, a provider of world-class security solutions, custom-tailored to the individual needs of its global client base. Global Guardian offers an integrated suite of best-in-class security services that help clients identify and mitigate the risks of traveling and doing business both overseas and domestically.Prior to Global Guardian, served as General Counsel to Arch Amenities Group (formerly WTS International), a worldwide amenity management firm serving the hospitality, spa, fitness, commercial real estate, and recreation industries. Responsible for all legal affairs of the company, including contracts, litigation, regulatory compliance, employment, insurance, and intellectual property. Prior to joining AAG, operated as a solo practitioner in Virginia. Areas of former representation included small business formation and governance, civil litigation, non-profit law counsel, criminal defense (felony and misdemeanor), and estate planning. Formerly an Associate at Three Bridges Law, a general practice law firm. Areas of expertise included small business establishment, development and ongoing counsel; legislative and regulatory research and counsel; estate planning; non-profit formation; and Congressional advocacy.Admitted to practice in Virginia. Member, Virginia State Bar.
Current workplace
John Casterline's current company
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Global Guardian
6 roles
John Casterline work experience
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General Counsel
Commercial contracts: authored and negotiated the entirety of AAG’s contract portfolio. Developed new contract types as service offerings diversified. Contract experience includes management and consulting agreements, licensing agreements, commercial leases, settlements, and facility operations documents (vendor contracts, waivers and releases, membership.
Dec 2015 - Nov 2023
Solo Practitioner
Law Office Of John Casterline Esq.
Corporate counsel: corporate formation; ongoing governance; drafting and reviewing contracts, non-disclosure agreements, teaming agreements, agency contracts; intellectual property protection; stock issuance and securities law counsel; employment lawSubject-matter legal and policy briefing: oral and written executive-level summaries and advice on diverse.
Jan 2014 - Dec 2015
Associate
Three Bridges Law
General practice law firm. Areas of experience include corporate formation and governance, small business counsel, estate planning, non-profit formation, and federal acquisition and contracting. Provides legal research and support to Three Bridges Advisors (lobbying counterpart to Three Bridges Law) in furtherance of client advocacy in legislative and.
Apr 2011 - Jan 2014
Senior Analyst, State Licensing And Regulatory Affairs
Licensing and regulatory specialist responsible for ensuring continued compliance with 50 state money transmission regulatory agencies. Responsibilities included:Business license application and renewal preparation and assemblyLegal research of relevant state law to ensure continued compliancePreparation and oversight of on and off-site regulatory.
Jan 2008 - Nov 2010
Legal Intern
Law school summer internship. Responsibilities included:Conducting extensive legal research on a variety of criminal law topicsDrafting numerous Government responses to suppression, severance, and jury trial motions Assisting Special U.S. Attorneys in court during both jury and non-jury trials
May 2006 - Aug 2006
Team & coworkers
Colleagues at Global Guardian
Other employees you can reach at globalguardian.com. View company contacts for 54 employees →
DO
David Oredson
Colleague at Global GuardianCharlotte Metro, United States
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LM
Lemond Maddox, Pps
Colleague at Global GuardianDistrict Heights, Maryland, United States, United States
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CA
Craig Anderson
Colleague at Global GuardianWashington DC-Baltimore Area, United States
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JC
Joseph Chafetz
Colleague at Global GuardianNew York, New York, United States, United States
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IK
Ian Kettleman
Colleague at Global GuardianMount Airy, Maryland, United States, United States
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SJ
Stephen Johnson
Colleague at Global GuardianAshburn, Virginia, United States, United States
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JT
Julian Thompson
Colleague at Global GuardianWashington DC-Baltimore Area, United States
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TV
Tyler Verdeyen
Colleague at Global GuardianArlington, Virginia, United States, United States
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SM
Steve Mcdougald
Colleague at Global GuardianCharlotte, North Carolina, United States, United States
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RG
Ronald Gomez
Colleague at Global GuardianRock Hill, South Carolina, United States, United States
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David Oredson
Colleague at Global GuardianCharlotte Metro, United States
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LM
Lemond Maddox, Pps
Colleague at Global GuardianDistrict Heights, Maryland, United States, United States
View →
CA
Craig Anderson
Colleague at Global GuardianWashington DC-Baltimore Area, United States
View →
JC
Joseph Chafetz
Colleague at Global GuardianNew York, New York, United States, United States
View →
IK
Ian Kettleman
Colleague at Global GuardianMount Airy, Maryland, United States, United States
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SJ
Stephen Johnson
Colleague at Global GuardianAshburn, Virginia, United States, United States
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JT
Julian Thompson
Colleague at Global GuardianWashington DC-Baltimore Area, United States
View →
TV
Tyler Verdeyen
Colleague at Global GuardianArlington, Virginia, United States, United States
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SM
Steve Mcdougald
Colleague at Global GuardianCharlotte, North Carolina, United States, United States
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RG
Ronald Gomez
Colleague at Global GuardianRock Hill, South Carolina, United States, United States
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2 education records
John Casterline education
B.A., Philosophy, Sociology
FAQ
Frequently asked questions about John Casterline
Quick answers generated from the profile data available on this page.
What company does John Casterline work for?
John Casterline works for Global Guardian.
What is John Casterline's role at Global Guardian?
John Casterline is listed as Experienced General Counsel, Legal Executive | J.D. at Global Guardian.
Where is John Casterline based?
John Casterline is based in Fairfax, Virginia, United States while working with Global Guardian.
What companies has John Casterline worked for?
John Casterline has worked for Global Guardian, Arch Amenities Group, Law Office Of John Casterline Esq., Three Bridges Law, and Travelex Global Business Payments, Inc..
Who are John Casterline's colleagues at Global Guardian?
John Casterline's colleagues at Global Guardian include David Oredson, Lemond Maddox, Pps, Craig Anderson, Joseph Chafetz, and Ian Kettleman.
How can I contact John Casterline?
You can use AeroLeads to view verified contact signals for John Casterline at Global Guardian, including work email, phone, and LinkedIn data when available.
What schools did John Casterline attend?
John Casterline holds J.D. from University Of Virginia School Of Law.
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