Author and Publication
Author: Nellie Supports Ltd
Publication Date: 15/05/2026
Citation
The Court of Protection Rules 2017, SI 2017/1035. Available at: https://www.legislation.gov.uk/uksi/2017/1035/contents/made
Copywright
Copyright © 2026 Nellie Supports Ltd. All rights reserved.
This article is made available for general information, education and professional reference. It may be downloaded, printed and shared for non-commercial purposes, provided that it is reproduced in full, is not altered in any way, and is properly cited as the work of Nellie Supports Ltd. This material must not be edited, adapted, sold, republished, incorporated into commercial products, or used for commercial training, assessment, report-writing or advisory services without prior written permission from Nellie Supports Ltd.
This article does not constitute legal advice, clinical advice or a substitute for a decision-specific professional assessment. Where legislation, government guidance, court forms or external professional materials are referred to, those materials remain subject to their own copyright, licensing and re-use terms.
Abstract
This guide explains deputy attorney and trustee evidence duties in Court of Protection property sale cases for Court of Protection Property Sale Evidence in England and Wales. It gives a decision-specific overview of relevant information, evidence, risk factors, report quality and when a formal assessment may be needed.
Deputy attorney and trustee evidence duties in Court of Protection property sale cases
Deputies, attorneys and trustees selling property for a person who lacks capacity each carry distinct evidence duties. Deputies act under a court order whose terms may require specific approval for a sale. Attorneys act within the scope of the registered Lasting Power of Attorney and must evidence best interests. Trustees face the added complication that trusteeship is a separate legal role: a trustee who has lost capacity usually needs replacing before land can be sold, with Court of Protection involvement where the incapacitated trustee also holds a beneficial interest. This guide separates the three roles and the evidence each must hold.
Three offices, one transaction
Court of Protection property sale cases frequently involve the same few people wearing different legal hats: a deputy managing the person's affairs, an attorney under an LPA, a trustee of the legal title where the property is co-owned, sometimes two of these offices in one individual. Each office carries its own duties and its own evidence obligations in the sale, and the recurring failure in these cases is discharging one office's duties whilst silently assuming they cover the others.
The deputy's duties and evidential position
A deputy sells only within the authority the order confers, and many general orders do not extend to sale, making the first duty a reading of the order and, where it falls short, an application for specific authority before marketing. Alongside sits the statutory frame: acting in the person's best interests, engaging their participation and wishes, choosing the least restrictive course and keeping accounts that will satisfy the Office of the Public Guardian. The deputy's file should evidence each of these, not merely the completion.
The attorney's duties and their limits
An attorney under a registered property and financial affairs LPA generally holds authority to sell unless the instrument restricts it, but the duties are no lighter: best interests, participation, wishes and feelings and strict fidelity to the instrument's terms. The hard limits are conflict and self-dealing, an attorney cannot buy the property themselves or sell to their own advantage without the court's approval, and gifts of sale proceeds beyond the narrow statutory allowance need the court too. The attorney who pauses at these lines protects the transaction; the one who does not invalidates it.
The trustee dimension where title is shared
Where the property is co-owned, the incapacitated person is a trustee of the legal title, and the sale needs the trustee machinery addressed: an attorney cannot automatically exercise the donor's trustee functions, limited statutory exceptions aside, and an incapable trustee may need replacing, with the Court of Protection involved where they also hold the beneficial interest. Our trustee guides cover the mechanics; the present duty is recognising the issue before exchange, because it is unfixable politely afterwards.
The capacity evidence all three offices need
Whichever office conducts the sale, its foundation is the same: a recent, decision-specific assessment of the person's capacity to sell this property, independent of everyone benefiting from the transaction, reasoned through the functional test with the causative link shown. The office-holder's duty is to commission it properly and act consistently with it, because a deputy, attorney or trustee proceeding on stale, generic or borrowed capacity evidence is in breach of the office however sound their intentions.
Best interests duties shared across the offices
Deputies and attorneys share the Act's best interests machinery, and in a property sale it has teeth: the person participates so far as practicable, their wishes and feelings about the home are gathered and weighed, consultation reaches those engaged in their welfare and the least restrictive question, must the home be sold now, is genuinely asked. The file should show this reasoning contemporaneously, because the OPG, the court and any objecting relative will each look for it.
Conflicts, proceeds and the money trail
The duties continue past completion: proceeds belong to the person and are applied for them, accounted for by deputies to the OPG and by attorneys on demand, kept separate from the office-holder's own funds and never gifted, lent or invested for the family's convenience without authority. The commonest post-sale breaches are informal loans and premature inheritances, and the office-holder's protection is a money trail so clean that the question of benefit never gains traction.
When the office-holder should go to court
Each office carries situations where the court's approval is the duty: the deputy whose order is silent on sale, the attorney facing self-dealing or a substantial gift from proceeds, the trustee position needing reconstruction, any office-holder facing genuine family dispute over the sale. Applying is not weakness but compliance, and the order obtained converts a challengeable transaction into a determined one. The evidence assembled for the sale, capacity, best interests, wishes, is the application's core in every case.
Key takeaway
Deputies, attorneys and trustees in Court of Protection property sales carry parallel duties around one transaction: authority confirmed before marketing, decision-specific capacity evidence commissioned properly, best interests reasoned with the person's voice inside it, conflicts taken to the court and the proceeds accounted to the penny. Discharge each office by name rather than by assumption, and the sale stands whoever later examines it.
Frequently asked questions
Does a diagnosis automatically mean someone lacks capacity?
No. A diagnosis may explain why capacity is in doubt, but it does not answer the legal question. The assessment must still consider the specific decision, the relevant information, the support provided and whether the person can understand, retain, use or weigh that information and communicate a decision.
What evidence is useful for Court of Protection Property Sale Evidence?
For every role: the authority document, a decision-specific capacity assessment and a best interests record. For trustee cases, add the trust documents and the steps taken to replace or discharge the incapacitated trustee, because the sale cannot safely complete around an invalid trustee act.
When is a formal assessment for Court of Protection Property Sale Evidence useful?
Assess at the start of the sale process, not at exchange: the capacity evidence determines which legal route applies, and discovering the right route late is how these transactions lose months.
Related mental capacity assessment pages
These internal links help readers move from this guide to the most relevant Nellie Supports service page, assessment option or legal framework page.
Unsure which duties apply to your role?
Nellie Supports prepares Court of Protection property sale evidence across England and Wales, including decision-specific capacity assessments for the sale itself, with a same working day response and every report peer reviewed before delivery. Call 0333 987 5118 or visit the property sale evidence service page.