“Where a lease is taken by a person as an agent for another, evidence is admissible to prove that fact, although evidence is not admissible to reveal the existence of an undisclosed principle.”
“but the rule of law is clear, that, where one by his words or conduct wilfully causes another to believe the existence of a certain state of things, and induces him to act on that belief, so as to alter his own previous position, the former is concluded from averring against the latter a different state of things as existing at the same time; and the plaintiff, in this case, might have parted with his interest in the property by verbal gift or sale, without any of those formalities that throw technical obstacles in the way of legal evidence. And we think his conduct, in standing by and giving a kind of sanction to the proceedings under the execution, was a fact of such a nature, that the opinion of the jury ought, in conformity to [two authorities cited] to have been taken, whether he had not, in point of fact ceased to be owner”
“At common law, the general rule is that, when the head tenancy comes to an end, any subtenancy derived out of it is also automatically and simultaneously comes to an end. This general rule applies without question when the head tenancy come to an end by effluxion of time, by a landlord’s notice to quit, or by forfeiture …”