Been a long time I visited thiz wonderful site,

you have been married for ten years, you and your wife live in a duplex that you rented through an agent,

for ten years now you have been paying house rent (most times the house rent increases)as the husband and head of the family you payed the rent and also take care of your wife and children,

Now the big question is, after whole TEN YEARS you came to know that the duplex belongs to your wife, your wife has been your landlord all this while,

what will be your action, matured advice needed

Stop further payments and also ask for 50% reimbursement from previous payments collected from you and finally congratulate yourself for also now becoming joint landlord.