Atty. John Patrick (Jack) Keller
Jack Keller is a member of the Litigation Practice in Greenberg Traurig's Miami office. Jack routinely handles cases from inception through trial and has experience across a variety of complex commercial litigation and white-collar litigation matters in state and federal courts.
Litigation & More Attorney · Serving Miami, FL · 4+ Years Experience
Profile Summary
About John Patrick (Jack) Keller at a Glance
John Patrick (Jack) Keller is an Associate based in Miami, Florida, practicing at Greenberg Traurig, LLP. They have 4+ years of legal experience, licensed to practice since 2022. Their practice focuses on white collar and litigation. Admitted to practice in Florida U.S. District Court for the Northern District of Florida U.S. District Court for the Middle (2022). Educated at University of Miami School of Law (J.D., 2021) and University of Georgia (B.A., 2016). Active member of Professional & Community Involvement •Member, The Florida Bar's Military & Veterans Affairs Committee •Member, Judge Advocate Association American Inn of Court •Member, Association of the U, S, and Army •Member, Miami-Dade Bar Association •Member, Cuban American Bar Association. Serves clients in Miami, FL and the surrounding metropolitan area.
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About John Patrick (Jack) Keller
- Jack Keller is a member of the Litigation Practice in Greenberg Traurig's Miami office
- Jack routinely handles cases from inception through trial and has experience across a variety of complex commercial litigation and white-collar litigation matters in state and federal courts
- Jack focuses his practice on actions brought under the Anti-Kickback Statute (AKS), the Foreign Corrupt Practices Act (FCPA), the Sherman Act, and other government and internal investigations, including antitrust, money laundering, and tax matters
- Jack has represented clients in connection with investigations by all manner of government agencies, including the Internal Revenue Service (IRS), the Department of Justice (DOJ), and the Department of Homeland Security (DHS)
- Additionally, Jack routinely handles cases involving breaches of fiduciary duties, civil theft and conspiracy, contract disputes, cross-border commercial disputes, private equity disputes, real estate litigation, and securities fraud
- In connection with these matters, he regularly drafts dispositive motions and represents clients at hearings and depositions
- Prior to joining the firm, Jack served as a Judge Advocate in the U.S
- Army, where he handled administrative and internal investigations, prosecuted actions under the Uniform Code of Military Justice (UCMJ), and served as a command adviser on national security and military justice issues
- He currently serves in the U.S
- Army Reserve as a Trial Defense Counsel and maintains an active military pro bono practice
Practice Areas Explained
John Patrick (Jack) Keller's Areas of Legal Practice
Each practice area below reflects the types of cases John Patrick (Jack) Keller handles, with a practical overview of what that area of law involves and how it may apply to your situation in Miami.
White Collar Crimes in Miami
John Patrick (Jack) Keller is one of 19,824 white collar attorneys indexed nationally. Browse white collar attorneys in Florida →
Civil Litigation in Miami
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
John Patrick (Jack) Keller is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Florida →
Jurisdictional Context
Why Local Counsel Matters in Miami
Practicing law in Florida. Legal matters in Florida are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Miami are typically filed in the local municipal court or the appropriate Florida state district court, depending on subject matter and amount in controversy. An attorney licensed in Florida brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Florida courts without local counsel or pro hac vice admission.
Miami Courts and Legal Process
Choosing a Miami-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Florida attorneys? Browse all attorneys in Miami or all attorneys in Florida.
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Professional Profile
Why Clients in Miami Choose John Patrick (Jack) Keller
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish John Patrick (Jack) Keller's practice in the field of white collar and litigation.
4+ Years of Legal Practice
With 4 years in the profession, John Patrick (Jack) Keller has developed the procedural fluency and courtroom instincts that come from handling real cases under real deadlines.
Broad Practice Area Coverage
Covering white collar and litigation, John Patrick (Jack) Keller can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Miami
A Miami-based practice means John Patrick (Jack) Keller attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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