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š§¾ Mazur explained: Litigation just got pricier

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The High Court has made clear that only qualified solicitors can run litigation ā paralegals and other unqualified staff can help, but they canāt manage a case themselves.
This changes how a lot of law firms operate, especially those relying on paralegals for routine legal work.
It also creates real uncertainty for the SRA, education providers, and firms trying to follow the rules on who can legally conduct litigation.

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š§¾ Mazur explained: Litigation just got pricier

Whatās going on here?
A recent High Court ruling in Mazur v Charles Russell Speechlys has shaken up how law firms use their paralegals. The court decided that law firm staff who arenāt qualified solicitors can help with litigation, but they canāt run litigation themselves.
This decision has confuses a lot of paralegals. Some arenāt sure if they can keep doing parts of the work that theyāve been doing for years.
What was this about?
Charles Russell Speechlys, a major City law firm, did some legal work for two clients, Julia Mazur and Jerome Stuart. When they didnāt pay their Ā£54,000 bill, the law firm hired Goldsmith Bowers Solicitors to recover the debt.
When Goldsmith Bowers filed a claim in court, the main legal document (called the particulars of claim) was signed by Peter Middleton, the firmās head of commercial litigation.
The problem was that Peter Middleton wasnāt a practising solicitor. He had been suspended in 2008 and never got his practising certificate back. When Goldsmith Bowers later hired him, they even needed special permission from the Solicitors Regulation Authority (SRA) ā the regulator for solicitors ā to employ him.
Mazur and Stuart found out about this and argued that Middleton wasnāt legally allowed to run the case. They said only authorised solicitors can conduct litigation ā and Middleton wasnāt one.
The case reached the High Court, which had to decide whether someone like Middleton could legally conduct litigation.
What does the law say?
The Legal Services Act 2007 explains which legal tasks only qualified professionals are allowed to do. These are called āreserved legal activitiesā.
They include:
Speaking in court (known as exercising the right of audience).
Running a legal case (called conducting litigation).
Handling someoneās estate after death (probate work).
Authenticating or witnessing legal documents (notarial work).
Swearing people in for legal purposes (administering oaths).
According to Section 18, only certain people or organisations can do these tasks:
Authorised persons: Qualified lawyers, such as solicitors approved by the SRA or barristers approved by the Bar Standards Board.
Authorised bodies: Licensed organisations, like law firms or Alternative Business Structure (ABS) providers, including legal arms of the Big Four accounting firms.
In short, only authorised lawyers or licensed firms can carry out reserved legal activities.
What was argued?
Goldsmith Bowers argued that Peter Middleton could carry out reserved legal work because their firm was authorised to do so.
But the law says that being employed by an authorised firm isnāt enough. The individual doing the work must also be authorised (or covered by a legal exemption).
Exemptions only apply in specific cases ā for example, civil servants acting in their official role or people representing themselves in court.
Peter Middleton didnāt fit any of those categories. He wasnāt an authorised solicitor, and he wasnāt exempt.
What did the judge decide?
Mr Justice Sheldon ruled that people who arenāt authorised lawyers, like Peter Middleton, cannot carry out reserved legal work. This applies even if they work for an authorised firm or are supervised by a qualified solicitor.
They can help with the work, but they canāt do it themselves. In other words, non-qualified staff can support an authorised lawyer, but not conduct the legal activity on their own.
Why has this caused so much confusion?
ā The ruling contradicts earlier SRA guidance: Before this case, the SRA had looked into Peter Middletonās work at Goldsmith Bowers and decided not to investigate. That decision implied the regulator thought his actions were lawful.
The High Courtās judgment now says the opposite ā that non-authorised staff canāt conduct litigation, even under supervision. This directly challenges the SRAās earlier position and raises questions about why it previously took no action.
For law firms, this is confusing. If the regulator itself didnāt see a problem before, itās unclear what firms are meant to do differently now.
šļø The SQE guidance adds to the problem: The SRA tells aspiring solicitors that providing legal services, which can include work on reserved legal activities, can count as qualifying work experience for the SQE.
But SQE candidates arenāt authorised lawyers. This means the SRAās own guidance could encourage people who arenāt authorised to take part in reserved legal activities ā the very thing the court says they canāt legally do.
The contradiction leaves firms and trainees unsure where the boundary lies.
š¤ Conflicting messages from other regulators: CILEX, which oversees Chartered Legal Executive qualifications, added another layer of confusion. Until 2023, it told members that they could conduct litigation if employed by a law firm.

CILEX gave the wrong advice on its website
But CILEX members arenāt authorised under the Legal Services Act to conduct reserved legal work. So, they can assist, but not lead cases.
This shows that even professional bodies have misunderstood what non-authorised staff are legally allowed to do. The ruling now makes it clear ā but it also exposes how widespread the misunderstanding has been.
So what exactly counts as āconducting litigationā?
Thatās part of the problem ā no oneās entirely sure.
The Legal Services Act says that āconducting litigationā includes:
issuing court proceedings,
running or defending those proceedings, and
doing related or āancillary functionsā.
The first two are clear enough. But āancillary functionsā could mean almost anything connected to a case ā from drafting documents to managing correspondence.
Mr Justice Sheldon said it depends on the facts of each case. But that leaves law firms in an awkward position ā they need to decide how much paralegals can safely do without crossing a line that isnāt clearly marked.
Why should law firms care?
š¼ It limits what paralegals can do: Many law firms rely on paralegals (especially in areas like debt recovery, personal injury, and conveyancing). Paralegals are cheaper to employ than solicitors, and experienced ones often manage their own caseloads under a solicitorās supervision.
This ruling could change that. Firms will now need qualified solicitors to handle those tasks. That could increase costs and reduce efficiency. Clients may resist higher fees for work that was previously done by paralegals at a fraction of the price.
š§¾ Challenges are already reaching the courts: Since the judgment, some losing parties have argued that firmsā costs should be thrown out entirely because unqualified paralegals āillegallyā conducted litigation. These claims havenāt been fully tested yet, but courts are already seeing them crop up in cost assessments.
There are limits, for now. Cases that settle before court proceedings likely arenāt affected. Fixed-cost cases shouldnāt change much either, since the fees are capped regardless of who did the work. And in practice, proving exactly who did what ā and whether it counts as āconducting litigationā ā will be messy and difficult to enforce.
Still, the risk is real. The Mazur decision has triggered what some are calling a ācosts war.ā Firms could now face major challenges when trying to recover their fees if paralegals were heavily involved in the case.
šØ Clients could also challenge past work: Unhappy clients could use this ruling to question previous cases ā particularly if they lost. They might argue that unauthorised staff conducted their litigation and complain to the regulator or even sue the firm.
Even if these claims donāt succeed, they can still damage a firmās reputation and take time and money to defend.
šµļø Thereās a risk of regulatory action: The SRA might decide to review cases where paralegals have carried out reserved legal work in the past. In reality, enforcing this could be difficult, since many firms have long relied on paralegals to do these tasks.
Still, the possibility of regulatory action remains a risk firms canāt ignore.
šØ The consequences are serious: If someone who isnāt authorised conducts litigation, itās not just a breach of rules ā it could amount to contempt of court or even a criminal offence.
This judgment clarifies what the law says but exposes how uncertain it remains in practice. Law firms now need to rethink how they use paralegals, how they recover costs, and where to draw the line between support and responsibility.

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