Proprietor; landlord (5)
I believe the answer is:
owner
I believe this is a double definition.
'proprietor' is the first definition.
(I know that proprietor can be written as owner)
'landlord' is the second definition.
(I know that landlord can be written as owner)
(Other definitions for owner that I've seen before include "Person having property" , "One who has something" , "The person in lawful possession" , "One who possesses" , "Keeper" .)