An additional issue occurs to me namely that of ownership.
Specifically, at what point does the ownership of the vendor [OP] cease and the ownership of the purchaser commence ?
Is it the date on which the local authority or the Department of Transport - whichever applies - register the change ?
Is it the date on which the relevant paperwork is posted to the local authority / Department of Transport ?
Is it the date on which the vendor [OP] receives the contractual consideration from the purchaser ?
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