In Singapore, the Electronic Transactions Act provides an explicit list of documents that are not allowed to be signed electronically. It excludes, for example:
- negotiable instruments, documents of title or any transferable document that entitles the bearer or beneficiary to claim the delivery of goods or the payment of a sum of money;
- trusts and powers of attorney; and
- certain real estate transactions that involve the sale, disposition, or conveyance of immovable property.
This differs across various countries so we always recommend seeking legal advice if you are unsure how it applies in your respective jurisdiction.