If the original tenant has died and the legal heirs are occupying the leased premises, whether they are paying the monthly rental amount regularly in the capacity of tenants?
If the landlord accepted the monthly rental amount from the legal heirs/legal representatives of the deceased tenant and had not taken any action to evict them from the premises, then it clearly defines that the landlord accepted them as tenants and the landlord tenancy relationship has been proved.
Therefore if at all the landlord has to evict the tenants,m, he may have to initiate action as per due process of law either by latest rent control act or by filing a civil suit for eviction.