Anti-suit injunctions to protect Commercial Court case-management: restricting foreign §1782 discovery that undermines cost-minimisation

Case: Goldstein Property ICAV v RELM Loan Opportunities 2 Designated Activity Company and Ors (Approved) [2026] IEHC 516
Court: High Court of Ireland (Commercial Court)
Judge: Twomey J.
Date: 24 July 2026

1) Introduction

This Commercial Court judgment addresses “lawfare” allegations—i.e., the use of litigation as a weapon to inflict pressure through costs and disruption rather than to vindicate rights. The defendants (collectively, “RELM”, including the receivers) sought (i) an anti-suit injunction to restrain the plaintiff (“Goldstein”) from prosecuting a discovery application in New York and (ii) security for costs in the Irish proceedings.

The Irish “Estoppel Proceedings” concern Goldstein’s claim that RELM is estopped from calling in loans and from appointing receivers over a large portfolio of Irish commercial properties. The New York proceedings were a 28 U.S.C. §1782 application seeking compelled discovery from RELM’s ultimate owner (a non-party to the Irish action) for use in the Estoppel Proceedings.

The central legal issue was novel in Irish law: can an anti-suit injunction be granted to protect Irish Commercial Court case management and cost-minimisation objectives where a party pursues subordinate foreign discovery without the Commercial Court’s consent?

2) Summary of the Judgment

  • Principle: The Court held that an anti-suit injunction is, in principle, available to protect the integrity of the Commercial Court’s processes where a party “steps outside” the case-management regime by pursuing subordinate foreign discovery that is inconsistent with the Commercial Court’s cost-minimisation purpose—even absent a breach of a legal/equitable right or “unconscionable behaviour”.
  • Finding on conduct and purpose: On the evidence, the Court inferred that Goldstein’s primary purpose in the New York §1782 process was to apply improper pressure through irrecoverable, potentially very large costs, and to disrupt property sales (including by circulating New York pleadings to sales agents/prospective purchasers).
  • Relief: Although the Court stated it would have granted an anti-suit injunction if timely sought, it was not minded to grant it at this stage for practical/comity reasons because the New York motion had been fully argued and was awaiting judgment (i.e., little remained to be restrained).
  • Case-management next steps: The Court indicated it would hear further submissions after the New York decision, including whether Irish directions could secure discovery more cost-effectively (without contravening any US order).
  • Security for costs: Security for costs was ordered in the sum of €944,460 (excluding VAT), rejecting the plaintiff’s “special circumstances” argument and emphasising the public interest in litigants having “skin in the game”.

3) Analysis

3.1 Precedents Cited (and how they shaped the outcome)

(A) Irish anti-suit injunction authority: integrity of Irish processes

The Court treated Re GTLK Europe DAC (in Liquidation) [2025] IEHC 524 as the key Irish authority. In that case, Mulcahy J. recognised jurisdiction to restrain foreign proceedings undermining Irish court orders/processes, including foreign proceedings that are “an abuse”, “vexatious or oppressive”, or which “undermine or circumvent orders of the Irish courts”.

Twomey J. extended the rationale beyond substantive orders (e.g., liquidation priorities) into a procedural/case-management context: if the court can protect its substantive orders, it can also protect procedural integrity where the cost consequences of procedural circumvention are extreme (here, allegedly “millions” and irrecoverable).

(B) The English “legal/equitable right” constraint—and why the Court declined to follow it

Goldstein relied on South Carolina Insurance Co v Assurantie Maatschappij 'De Zeven Provincien' NV [1987] AC 24, where the House of Lords refused to restrain a US evidence-gathering step absent invasion of a legal/equitable right or unconscionable conduct.

Twomey J. held that the House of Lords approach reflected an earlier era where parties were more “dominus litis” and case management was embryonic. The Court emphasised modern Irish authority recognising a public-interest dimension to litigation conduct and costs control, particularly in case-managed lists.

Notably, Twomey J. drew support from the earlier English Court of Appeal reasoning (ultimately reversed) in South Carolina Co. v Assurantie Provincien [1986] Q.B. 348, especially Griffiths L.J.’s warning against “procedural forum shopping” and “intolerable burdens” where one party forces procedural battles in whatever jurisdiction offers advantage.

(C) Canadian and Australian §1782 / case-management decisions (preferred approach)

The Court preferred the modern case-management-driven approach in:

  • Canada: Mancinelli v Royal Bank of Canada [2017] ONSC 87 — Perell J. treated §1782 discovery not as mere evidence gathering but as compelled disclosure that can circumvent domestic procedural protections; anti-suit relief was granted where parties bypassed case-managed rules and failed to pursue realistic alternatives (including first requesting disclosure).
  • Australia: Jones v Treasury Wine Estates Ltd [2016] FCAFC 59 — the “vice” was invoking US §1782 without notice/approval, undermining the Australian court’s case management and supervision; any “right” to obtain evidence cannot be exercised to circumvent the home court’s control.
  • Australia: Lavecky v Visa Inc [2017] FCA 454 — Perram J.’s case-management factors for whether to “endorse” a §1782 step (importance, alternatives, procedural limits, cost/proportionality, timing, and conditions) mapped closely onto Twomey J.’s proportionality-and-alternatives focus.

(D) Irish third-party discovery principles (analogy and foundation)

Although the New York target was outside Irish jurisdiction (Fusco v O'Dea [1984] 2 I.R. 93), Twomey J. drew on the underlying principle in Chambers v Times Newspapers Ltd [1999] 2 I.R. 424 (Morris P.): third-party discovery is exceptional and should not be imposed where there is a “realistic alternative” and where the documents are readily obtainable from parties.

The Court treated this principle as applying a fortiori where the third party is foreign and the “inconvenience” (and cost) is greater.

(E) Case-management, public interest, and waste of resources

The Court reinforced the legitimacy of costs-and-efficiency control by reference to:

  • Tracey v Burton [2016] IESC 16 (McMenamin J.) — strong public interest in court time and in preventing exposure to unnecessary/unrecoverable costs; access to courts is not absolute and must be balanced.
  • O'Reilly McCabe v. Minister for Justice, & Patrick Cusack Smith & Co (Agents of Thomas McCabe, Ward of Court & Minor) [2009] IESC 52 — constitutional balancing referenced in Tracey.
  • Kalix Fund Ltd v HSBC Institutional Trust Services (Ire) Ltd [2010] 2 I.R. 581, [2009] IEHC 457 — courts may order business to avoid waste of scarce court and party resources through unnecessary duplication (used by analogy to avoid disproportionate satellite litigation spend).

(F) Security for costs framework and “skin in the game”

For security for costs, the Court applied the orthodox Irish approach:

  • Usk District Residents Association Limited v Environmental Protection Agency [2006] ILRM 363 (Clarke J., summarising Interfinance Group Ltd v KPMG [unreported, High Court, 29 June 1998]) — prima facie defence + inability to pay; then plaintiff must show “special circumstances”.
  • Quinn Insurance Limited v PricewaterhouseCoopers [2021] 2 I.R.70, [2021] IESC 15 — “least risk of injustice”; consider potential stifling but also defendant’s compromised position if unable to recover costs.
  • Connaughton Road Construction Limited v. Laing O'Rourke Ireland Limited [2009] IEHC 7 — source of “special circumstances” analysis (impecuniosity caused by alleged wrong).
  • Hedgecroft Limited v Htremfta Ltd [2018] IECA 364 — security may still be ordered even where wrongdoing contributes to impecuniosity if no evidence of stifling and investors/shareholders can fund security.
  • Farrell v Bank of Ireland [2012] IESC 42 — costs exposure can function as “blackmail”; security serves fairness where one side otherwise bears irrecoverable defence costs.
  • Bourbon v Ward [2012] IEHC 30 and Beakonford Limited v Stokes [2025] IEHC 22 — cited to contextualise concerns about prohibitive costs in Ireland.

3.2 Legal Reasoning

(A) The Court’s core doctrinal move: from explicit rules to an “implicit” Commercial Court requirement

The Court anchored its reasoning in the Commercial Court’s express objectives:

  • Order 63A, rule 5 — directions to determine proceedings “just[ly]”, “expeditious[ly]” and “likely to minimise the costs”.
  • Order 63A, rule 6(1)(b) — directions at initial hearing can include discovery and related steps, linked back to rule 5’s objectives.
  • Practice Direction HC122 — “all further steps” are “subject to the directions” of the Commercial List judge.

From these, Twomey J. inferred an implicit rule: where foreign proceedings are subordinate to and in aid of Commercial Court proceedings (as §1782 discovery plainly was), a party should not unilaterally initiate them without at least notifying and, in substance, seeking directions/approval from the Commercial Court—because otherwise the court cannot perform its case-management function (especially on costs).

(B) Fact-driven findings supporting “lawfare” and procedural abuse concerns

The Court did not hold that §1782 discovery is inherently improper; rather, it focused on the manner, sequencing, and apparent purpose:

  • First port of call: Goldstein went straight to an ex parte New York application without seeking voluntary discovery or exploring whether relevant material was in RELM’s possession/procurement or accessible via an Irish branch.
  • Cost asymmetry and irrecoverability: uncontested evidence suggested US discovery costs could be “multiples” of Irish costs, with limited/no cost-shifting and with the producing non-party bearing production costs—creating serious settlement pressure unrelated to merits.
  • Undermining urgency narrative: the plaintiff claimed pressing need for strike-out defence but did not notify the Commercial Court or seek an adjournment pending US discovery, undermining credibility on purpose and timing.
  • Pressure on third parties: uncontroverted evidence that New York pleadings were served on sales agents/prospective purchasers, supporting an inference of intimidation/disruption aimed at thwarting receiver sales.

(C) The scope of anti-suit jurisdiction: procedural integrity, not just substantive rights

The Court’s legal conclusion was that, in modern case-managed litigation, protection of “the integrity of the court’s own processes” (per Re GTLK Europe DAC (in Liquidation) [2025] IEHC 524) extends to case-management and cost-control, not merely to preventing foreign circumvention of substantive Irish orders.

(D) Why the anti-suit injunction was (provisionally) withheld

The Court’s refusal (at least at this stage) was pragmatic:

  • the New York motion was fully argued and awaiting judgment (little left to restrain);
  • comity/courtesy concerns with intervening while a foreign judge’s decision was imminent;
  • it might be more efficient to await the US decision, which could narrow discovery disputes in Ireland.

Importantly, the Court signalled that, had it been seized earlier, it would have granted anti-suit relief to prevent the unilateral §1782 step.

(E) Security for costs: fairness, proportionality, and deterrence of cost-free litigation

On security for costs, the Court found:

  • Impecuniosity was undisputed and a prima facie defence existed.
  • No “special circumstances”: the plaintiff’s inability to pay did not flow from the defendants’ alleged wrong; the plaintiff was materially under-secured (“under water”) and had cash-flow deficits pre-receivership.
  • No evidence of stifling: the plaintiff had funded multiple proceedings, provided substantial security elsewhere, proposed a fortified undertaking previously, and offered €500,000 here (suggesting access-to-courts would not be improperly stifled).
  • Public interest: requiring “skin in the game” discourages using litigation for ulterior motives and mitigates the “blackmail” dynamic of forcing a defendant to settle to avoid irrecoverable defence costs.

3.3 Impact

(A) Cross-border discovery in aid of Irish Commercial Court proceedings

The judgment is likely to be relied upon where a party seeks to deploy foreign compelled discovery (especially §1782) as a tactical lever in Irish litigation. The Court’s reasoning supports the proposition that a Commercial Court litigant should:

  • raise intended foreign discovery steps with the Commercial Court in advance;
  • demonstrate “no realistic alternative” (voluntary discovery, discovery from parties, procurement, Irish-accessible repositories);
  • address proportionality and cost-shifting asymmetries explicitly.

(B) Anti-suit injunctions as a case-management tool (a significant doctrinal development)

Even though injunctive relief was not granted on the facts due to timing, the Court’s stated willingness to grant it to enforce case-management and cost-minimisation marks a meaningful expansion beyond the traditional “legal/equitable right” framing associated with South Carolina Insurance Co v Assurantie Maatschappij 'De Zeven Provincien' NV [1987] AC 24.

(C) Litigation conduct and third-party pressure

The Court’s treatment of serving foreign pleadings on property-market participants signals a readiness to characterise such conduct as improper pressure and as supporting inferences about ulterior motive—potentially relevant to future applications concerning abuse of process, interlocutory relief, or costs sanctions.

(D) Security for costs: reinforcing deterrence and fairness in high-cost commercial litigation

The judgment underscores that, in high-stakes commercial disputes, security for costs is not merely procedural—it is integral to maintaining equality of arms, reducing coercive settlement dynamics, and ensuring those who stand behind an impecunious corporate plaintiff bear an appropriate litigation risk.

4) Complex Concepts Simplified

  • Anti-suit injunction: an Irish order restraining a party (within Irish jurisdiction) from starting or continuing foreign proceedings. It does not bind the foreign court; it binds the litigant.
  • 28 U.S.C. §1782: a US mechanism allowing a US court to order discovery “for use” in foreign proceedings. It can be attractive where US discovery is broader and where cost-shifting differs from the foreign forum.
  • Case management (Commercial Court): the judge actively directs steps and timelines to achieve a just and quick outcome and to minimise costs (Order 63A and Practice Direction HC122).
  • Third-party discovery: compelling a non-party to produce documents. Irish law treats it as exceptional and generally only where there is no realistic alternative (per Chambers v Times Newspapers Ltd [1999] 2 I.R. 424).
  • Security for costs: money paid into court (or otherwise secured) by a plaintiff who may not be able to pay the defendant’s costs if the claim fails; it prevents a defendant being forced to spend irrecoverable costs defending even a successful case.
  • “Lawfare” / weaponising costs: using procedures (especially expensive ones) to impose financial and practical pressure, potentially to force settlement irrespective of merits.

5) Conclusion

Goldstein Property ICAV v RELM Loan Opportunities 2 Designated Activity Company and Ors (Approved) [2026] IEHC 516 is a significant Commercial Court decision on the intersection of modern case management and cross-border compelled discovery. Twomey J. held that Irish courts can, in principle, deploy anti-suit injunctions to protect the integrity of the Commercial Court’s processes—particularly its cost-minimisation mandate—where a litigant initiates subordinate foreign discovery (such as a §1782 application) without the court’s knowledge or approval and in circumstances suggestive of tactical cost-escalation. The judgment also robustly applies security for costs principles to ensure procedural fairness and to require meaningful risk-bearing by those pursuing expensive commercial litigation through an impecunious corporate vehicle.