If one joint tenant (A) out of three (A, B and C) sells his share to X, then X becomes tenants in common with joint tenants B and C.
Now if B dies the property has tenancy in common with X and C.
If unfortunately C also die will X be the sole owner of the property?
No, there was a severance of the Joint Tenancy as noted.
If B dies, his share goes to C. Now, C has two shares out of three.
If C dies, the two shares goes to his estate.
X receives nothing, since the Joint Tenancy was severed.
Brian Madigan LL.B., Broker