from The Century Dictionary.
- noun In old English law, the act of a feudatory, vassal, or tenant, by which he consented, upon the alienation of an estate, to receive a new lord or superior, and transferred to him his homage and service; the agreement of a tenant to acknowledge as his landlord one who was not originally such, but claimed to have become such.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Law) The act of a feudatory, vassal, or tenant, by which he consents, upon the alienation of an estate, to receive a new lord or superior, and transfers to him his homage and service; the agreement of a tenant to acknowledge the purchaser of the estate as his landlord.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The consent of a tenant to the
transferof his relationship to his landlord to another person.
from Wiktionary, Creative Commons Attribution/Share-Alike License
"attornment" clause, completes the picture: It prevents a tenant who has signed a subordination clause from leaving a lease situation post-foreclosure when his lease is wiped out (this comes up when the market has softened and the tenant is only too happy to get out from under an over-market lease).
Nor can it make any difference, in breaking this continuity, that the submission and donation, constituting a species of attornment, were to enemies at home rather than to enemies abroad, -- to Jefferson Davis rather than to Louis Napoleon.
Their reasoning was that "the devise is quasi  an act of law, which shall inure without attornment, and shall make a sufficient privity, and so it may well be apportioned by this means."
Most landlord-drafted leases include only the subordination clause, naturally, and a few include an attornment clause, but none include the pro-tenant nondisturbance clause.
An attornment could not be on a con - dition fubfequent, for in fuch cafe the attornment would be good, and the condition void.
A corporation aggregate could not at common law make an attornment without deed, neither coyld such at - tornment be on a condition subse - quent.
For admitting that the rent and the reverfion be fettled in the grantee, by the attornment of tlie k (Ice, fo as he might'avow for it, although the conufee, who was his grantor, f»Bacjibr. x8. could not; whether he may take advantage of this condition? bccaufe the conufee, who was his grantor, could not, becaufe there was not any attornment made unto him: and the yz.