Legal Question in Landlord & Tenant Law in California

I do not know anything about L.A. rent control rules, but if it requires the landlord to yearly pay interest to the tenant on any security deposit put up by the tenant, then whether or not the current landlord actually received your deposit from the former owner, he is deemed to have received it so when you leave he must refund the deposit to you and pay any interest that is due. In buyinbg the property he steps into the shoes of the prior owner and assumes al the assets and all the liabilities. If he did not, all the tenants would have to file separate suits against the former owner to get back their deposits. The new owner should have been more careful to get all the deposits transferred to him.