Client Alerts
Texas Business Court Quarterly Update – 2026 Q2 Summaries
In the second quarter of 2026, the Texas Business Court continued to build on the progress of its first two …
July 29, 2026
July 29, 2026 • 31-minute read
Partner
Commercial & Business Litigation
“Marisa is described by her clients as an ‘assertive, zealous representative’ who ‘is fantastic at producing results,’ ‘a tenacious advocate who is good on her feet,’ and a “tremendous negotiator.” [Chambers USA 2024, 2025 (Client Quotes)]
Chambers USA, 2021–2026
Marisa is an experienced lead litigator who represents businesses and individuals in high-stakes disputes. Marisa has handled trials and arbitrations across the country, including contract suits, M&A and securities litigation, construction and real estate litigation, tax controversies, restructuring litigation, and complex indemnity and insurance matters.
When working on a matter, Marisa strives to achieve an efficient, favorable, and strategic resolution for her client. Marisa’s clients have noted that “[h]er overall style and ability to get things done is impressive. She is very effective at dealing with opposing counsel, she’s super-organized, efficient and results-oriented.” Chambers USA 2023 (Client Quote).
Marisa leverages both her skills as a trial attorney as well as her experiences serving in prestigious roles in public service. She spent two years as a Rules Attorney for the Supreme Court of Texas, where she developed a deep knowledge of civil procedure and the state appellate process. Marisa also previously served as a judicial clerk at the U.S. Court of Appeals for the Fifth Circuit. Her experiences both there and at the Texas Supreme Court provided her valuable insights into how judges approach cases.
Marisa’s success representing clients and in public service has earned her recognition from Chambers USA, Texas Super Lawyers, and Lawdragon, among others. In a feature on Marisa in Texas Lawyer magazine, former Texas Supreme Court Chief Justice Nathan Hecht praised Marisa as “an outstanding talent” who “can see the big picture.”
Marisa has served as a member of the Partnership Admissions Committee and Counsel Admissions and Compensation Committee, the Austin office hiring partner, and the lead of the Austin office’s Women’s Initiative.
In bet-the-company matter, obtained preliminary injunction preventing Texas licensing board from bringing administrative action to revoke client’s approval to train candidates to be classroom teachers; following a favorable settlement and independent audit, client’s state accreditation was restored
Represented SPAC in expedited action for specific performance of business combination agreement in Delaware Chancery Court
Successfully defended a nationwide operator of student-focused apartment homes against federal and state antitrust claims that it used revenue management software to coordinate prices with competitors; obtained complete dismissal of the claims under Rule 12(b)(6)
Defending fintech company in Delaware Court of Chancery against breach of contract and fraud claims brought by SPAC related to terminated de-SPAC transaction
Defended golfing corporation in suit for terminating a lease under force majeure; presented briefing and oral argument within a few weeks, ultimately convincing the court to deny temporary injunction and precipitating a settlement shortly thereafter
Represented multi-state amenity management company in a trade secret and contract dispute; obtained multiple temporary restraining orders and favorable settlement
(Del. Ch.) – Represented sellers of technology company in Delaware Court of Chancery on breach of contract and fraud claims related to sales pipeline and accounting issues
Represented joint venture partner in five-day bench trial on breach of Delaware LLC agreement regarding rights of first refusal and sale of interest in joint venture
Representing seller of major league baseball team in post-closing merger dispute regarding liability for federal taxes
Representing cloud commerce company in post-closing merger dispute regarding sales contracts and post-closing tax liability
Defended retailer and certain of its officers in federal securities action and derivative lawsuits in Texas federal court alleging violations of Section 10(b) of the Securities Exchange Act arising from restated financials
In advance of summary judgment, obtained favorable settlement of securities fraud claims challenging exploration and production company’s disclosures in merger proxy statement
Representing subsidiary of Fortune 500 company in ICC Arbitration in defense and indemnity dispute relating to underlying highway construction dispute
Representing terminalling company in complex insurance recovery matter related to fire incident
Represented terminalling company in AAA Arbitration in breach of contract suit related to construction services; obtained favorable settlement
Defending Fortune 1000 energy company in expedited lawsuit challenging major commercial transaction in Pennsylvania state court
Obtained complete dismissal on behalf of four Texas cities of declaratory judgment suit brought by water district in Texas state court
Defending monetary authority in two adversary proceedings alleging fraudulent transfer in bankruptcy court in the Southern District of New York
Represented independent oil & gas services company debtor in Chapter 15 bankruptcy proceedings in Western District of Texas and related adversary class action litigation; obtained complete dismissal of adversary proceeding class action
Defended nutrition company against preliminary injunction sought by dissident shareholders in proxy contest
First chair trial attorney in US Tax Court case involving the allocation of income between corporate agent and principals
Prosecuted breach of merger agreement claim with underlying transfer pricing tax issues in Texas federal court and defended related arbitration on behalf of the sellers of an oilfield services company
Defending a foreign monetary authority in a federal lawsuit relating to the R. Allen Stanford $8 Billion Ponzi scheme
Representing numerous amici in an appeal pending in the Supreme Court of Texas
Assisted in obtaining complete dismissal on basis of ERISA preemption of claims by a class of current and former employees against a large insurance company, asserting that the company’s long-term disability policy violated state and federal law
Assisted in representation of a debt-buying entity in a fraud and breach of contract action in federal district court
Education
Admissions
Client Alerts
Texas Business Court Quarterly Update – 2026 Q2 Summaries
In the second quarter of 2026, the Texas Business Court continued to build on the progress of its first two …
July 29, 2026
July 29, 2026 • 31-minute read
Articles
Texas Business Court Caseload Expands and Broadens After House Bill 40 Expands Jurisdiction
The Texas Business Court’s second year is off to a faster start than its first, and the expansion of its …
June 26, 2026
June 26, 2026 • 3-minute read
Client Alerts
Texas Business Court Quarterly Update – 2026 Q1 Summaries
In the first quarter of 2026, the Texas Business Court continued to make progress through the ever-growing number of lawsuits appearing on its dockets.
April 23, 2026
April 23, 2026 • 20-minute read
Client Alerts
Texas Business Court Quarterly Update – 2025 Q4 Summaries
In the final quarter of 2025, the Texas Business Court closed its first calendar year of operation with a full slate of notable opinions. The Business Court continued to release opinions clarifying its jurisdiction, including on removal requirements and recent changes enacted by House Bill 40.
January 27, 2026
January 27, 2026 • 25-minute read
Client Alerts
Texas Business Court Quarterly Update – Q3 2025
In the third quarter of 2025, the Texas Business Court has continued to release opinions that impact businesses operating in Texas and beyond.
October 20, 2025 • V&E Texas Business Court Quarterly Update
October 20, 2025 • 15-minute read
Media Coverage
Marisa Secco Giles and Nick Shum Share Their Views on the Texas Business Court
In a detailed Q&A with the Texas Lawbook, Vinson & Elkins litigation Partners Marisa Secco Giles and Nick Shum offered …
August 17, 2026
August 17, 2026 • 1-minute read
Awards & Rankings
The Legal 500 US 2026 recommended Vinson & Elkins as a leading law firm in 47 practice categories. In total, …
June 10, 2026
June 10, 2026 • 3-minute read
Awards & Rankings
Vinson & Elkins announced today that it achieved 20 Band 1 rankings in Chambers USA 2026: Nationwide: Energy Transition; Energy: …
June 4, 2026
June 4, 2026 • 3-minute read
Awards & Rankings
Lawdragon Names 34 Vinson & Elkins Lawyers to Its 2026 500 Leading Litigators in America Guide
Lawdragon has recognized 34 Vinson & Elkins attorneys in its 2026 500 Leading Litigators in America guide.
September 12, 2025
September 12, 2025 • 1-minute read
Awards & Rankings
The Best Lawyers in America (BL Rankings, LLC) has named 125 Vinson & Elkins lawyers in its “Best Lawyers” category in the 2026 edition. Additionally, 76 Vinson & Elkins attorneys have been named in the “Ones to Watch” category, which recognizes lawyers with 5–10 years’ experience. Some individuals are listed in more than one practice area, giving the firm a total of 305 rankings.
August 21, 2025
August 21, 2025 • 3-minute read
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