Law of Property (Miscellaneous Provisions) Act 1989

S. 1(3) of the Act provides that:

An instrument is validly executed as a deed by an individual if, and only if—

(a) it is signed—

(i) by him in the presence of a witness who attests the signature; or

(ii) at his direction and in his presence and the presence of two witnesses who each attest the signature; and

(b) it is delivered as a deed by him or a person authorised to do so on his behalf.

In 2008, the High Court of England and Wales expressed in obiter that the recycling of signature pages from earlier drafts rendered the agreements in question invalid as deeds under the Act.[6] Taken together with previous jurisprudence on the execution of documents in the Court of Appeal for England and Wales,[7] the Law Society of England and Wales has issued guidance as to what steps are necessary in order to validly execute deeds and other documents executed in counterpart in electronic or virtual closings:

Section 2 deals with contracts for the creation or sale of legal estates or interests in land, and not with documents that transfer such estates or interests.[10] The required scope for such contracts is defined in s. 2:

(1) A contract for the sale or other disposition of an interest in land can only be made in writing and only by incorporating all the terms which the parties have expressly agreed in one document or, where contracts are exchanged, in each.

(2) The terms may be incorporated in a document either by being set out in it or by reference to some other document.

(3) The document incorporating the terms or, where contracts are exchanged, one of the documents incorporating them (but not necessarily the same one) must be signed by or on behalf of each party to the contract.

The Court of Appeal has noted which types of agreements fall either within the Act or outside of it:

... Section 2 is concerned with contracts for the creation or sale of legal estates or interests in land, not with documents which actually create or transfer such estates or interests. So a contract to transfer a freehold or a lease in the future, a contract to grant a lease in the future, or a contract for a mortgage in the future, are all within the reach of the section, provided of course the ultimate subject matter is land. However, an actual transfer, conveyance or assignment, an actual lease, or an actual mortgage are not within the scope of section 2 at all.[11]

The "single document" requirement is strictly applied:

... Its effect is merciless. An appropriately signed document purporting to amount to a contract for the sale or other disposition of an interest in land will not in fact create a valid contract unless it includes all the expressly agreed terms of the sale or other disposition. If it fails do so it will be void...[12]

The Court has given guidance on circumstances where a land contract can be avoided under s. 2:[13]

1. A party seeking to avoid must identify a term which the parties have expressly agreed, which is not to be found in the single, or exchanged, signed document.
2. It is not sufficient merely to show that the land contract formed part of a larger transaction which was subject to other expressly agreed terms which are absent from the land contract.
3. The expressly agreed term must, if it is required by section 2 to be included in the single document, be a term of the sale of the land, rather than a term of some simultaneous contract (whether for the sale of a chattel or the provision of a service) which happens to take place at the same time as the land contract, and to form part of one commercial transaction.
4. S. 2(1) does not prohibit parties from structuring a transaction, for example, for the sale of the whole of a company's assets, in such a way that the land sale is dealt with in a different document from the sale of stock, work in progress or goodwill, unless the sale of the land is conditional upon the sale of the other assets.

S. 2 of the Act repealed s. 40 of the Law of Property Act 1925, thus abolishing the equitable doctrine of part performance with respect to dispositions of interests in land, which had been recommended by the Law Commission of England and Wales.[14] Although the Commission believed that the equitable doctrines of promissory estoppel and proprietary estoppel would still be available to provide relief,[15] the House of Lords has subsequently held[16] that such relief was not available. As Lord Scott of Foscote stated in his speech:

29.... proprietary estoppel cannot be prayed in aid in order to render enforceable an agreement that statute has declared to be void. The proposition that an owner of land can be estopped from asserting that an agreement is void for want of compliance with the requirements of section 2 is, in my opinion, unacceptable. The assertion is no more than the statute provides. Equity can surely not contradict the statute....

This mirrors the observation that "The doctrine of estoppel may not be invoked to render valid a transaction which the legislature has, on grounds of general public policy, enacted is to be invalid,"[17] which has been cited in other cases in the matter by the Court of Appeal.[18][19] The constructive trust remedy that is available under s. 2(5) of the Act, however, operates under principles distinct from those of estoppel, which can lead to problems in application and enforcement.[20] Academic discussion suggests that estoppel may still be available in situations outside of s. 2 on its own terms.[21]