Landlord’s epistle (6)
I believe the answer is:
letter
I believe this is a double definition.
'landlord's' is the first definition.
(landlords let property)
'epistle' is the second definition.
(I've seen this before)
(Other definitions for letter that I've seen before include "Item sent - character" , "Character - mail - landlord" , "Character - landlord - epistle" , "who may offer terms to residents?" , "Written character - landlord" .)