Choosing and using a solicitor
How to change solicitors mid case
You can change solicitor at any point in a matter, and you do not need the old firm's permission. What you do need is a plan for three things, which are the file, the money already owed, and the court's record of who acts for you. Handled in that order, a move costs a week. Handled badly, it costs the case.
When changing solicitor is worth it
Cases go badly for reasons that have nothing to do with the solicitor. Before moving, separate the two, because a move costs money and time and does not fix a weak position.
Reasons to move that hold up: the firm is not replying, the person handling your matter has changed three times, deadlines have been missed, the bill has passed the estimate without a conversation, or the work needs a specialism the firm does not have.
Reasons that usually do not: the other side is being difficult, the court is slow, or the honest advice was not the advice you wanted. A second firm will give you the same answer and charge you to read the file first.
The order to do it in
Do it in this order.
- Instruct the new firm first. Give them the matter reference, the key dates and any hearing dates. Ask for a written estimate that separates the cost of reading in from the cost of the remaining work.
- Check for conflicts. The new firm has to check it has not acted against you, and in a small city that check occasionally fails. Better to know before you tell the old firm.
- Get the retainer signed, so the new firm can write to the old one on your behalf.
- Then end the old retainer, in writing, asking for the file and a final bill.
Doing it the other way round leaves you unrepresented in the gap, which matters if a deadline lands in it.
The lien over your file
A solicitor has a lien over your papers, meaning a right to hold them until the bill is paid. It is not a punishment and it is not negotiable in the way people expect. If you owe the firm money, it can keep the file.
Three ways round it, in order of how often they work:
- Pay the bill. If it is right, this is the fastest route and the cheapest in the end.
- Have the new firm take the file on undertakings. The new firm gives a written promise to hold the papers to the old firm’s order and to settle the bill from any damages or on conclusion. Firms do this routinely in personal injury and litigation, less often elsewhere.
- Dispute the bill properly. If the bill is wrong, say why in writing and start the firm’s complaints procedure. A disputed bill does not automatically release the papers, and the complaint route and its deadlines run separately from the transfer.
Either way, ask for copies of the key documents you are entitled to hold yourself, and note that the lien covers the file, not your own original documents such as deeds or a passport.
Telling the court: form N434
If your case is in court, an informal handover is not enough. Under the civil procedure rules, where your address for service is your solicitor’s business address, that solicitor is treated as acting for you until the rules on change of representative are complied with. The former solicitor stays on the record until:
- A notice of change is filed at court, and
- The notice is served on every other party and on the former solicitor, and
- The notice states your new address for service and confirms that service has been carried out.
The form is N434, the notice of change of legal representative, which gov.uk also calls a notice of acting. Your new firm normally files it, but the responsibility for the case being properly represented is yours, so ask for confirmation that it has gone in.
Get this wrong and orders, directions and correspondence keep going to the firm you have left.
What to send the new firm
Give them a bundle rather than a story. In order of usefulness:
| What to send | Why it matters |
|---|---|
| The client care letter and terms of business from the old firm | Sets what you agreed, what you were charged and on what basis |
| All bills and the current balance | The lien question turns on this |
| Court orders and directions, with dates | Deadlines do not pause for a change of firm |
| Correspondence with the other side | The negotiating position is in here |
| Expert reports and medical evidence | The most expensive part of the file to recreate |
| Your own chronology | Half an hour of your time saves an hour of theirs at their hourly rate |
When not to change solicitor
Two weeks before a trial or a final hearing, a change of firm is rarely worth it. The reading-in cost is at its highest, the new firm inherits someone else’s tactics, and the court is unlikely to move the date because you changed solicitors.
If a hearing is close and the relationship has broken down, raise it with the current firm first in writing, ask for a different fee earner within the same firm, and keep the move as the fallback. Larger firms will reassign a matter internally, and the same file in different hands is the cheapest version of this fix.
Changing solicitor in Scotland and Northern Ireland
The commercial position is the same across the three legal systems: you can change agent, and the outgoing firm can hold papers against unpaid fees. The court mechanics differ. Scotland works through the sheriff court or Court of Session rules on change of agent rather than form N434, and Northern Ireland has its own procedure. If your matter is in a Scottish or Northern Irish court, ask the incoming firm which notice it files and when, and get confirmation once it has.
Common questions
Can I change solicitors in the middle of a case?
Yes. The retainer is a contract for services and you can end it. The practical questions are what you owe the old firm, whether it will release the file, and how the court is told, not whether you are allowed to move.
Will my old solicitor hand over the file?
Usually, once its bill is paid. A solicitor has a lien over the papers, which is a right to retain them until fees are settled. Where the bill is disputed or the client cannot pay, the new firm can sometimes take the file on undertakings, meaning it promises to hold the papers to the old firm's order and to pay the bill out of any damages.
What is form N434?
The notice of change of legal representative, used to tell a court that the legal representative in a case has changed. It is sometimes called a notice of acting. Under the civil procedure rules the former solicitor is treated as still acting until the notice is filed at court and served.
Does changing solicitors delay my case?
It costs some time, mostly the new firm reading in and the file being transferred. Court deadlines do not pause because you have changed firms, so the move is best made between steps rather than a fortnight before a hearing.
Do I have to pay two sets of fees?
You pay the first firm for the work it did and the second firm for the work it does, including the time spent reading the papers. There is unavoidable overlap in that reading-in time, which is the real cost of moving.
Can I change solicitors on a conveyancing matter?
Yes, and it is more common than people think when a transaction stalls. Tell the estate agent and the other side's solicitor, and expect the lender to be notified as well, because the firm acting for you is usually acting for the lender too.
Should I tell my current solicitor why I am leaving?
You do not have to. If the reason is poor service, saying so in writing is worth doing anyway, because it starts the firm's complaints procedure and preserves your position with the Legal Ombudsman.
Where the figures come from
- Civil Procedure Rules, Part 42, change of solicitor read 2026-09-04
- gov.uk, form N434, tell a court about a change of legal representative read 2026-09-04
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