On second thoughts (having read the above posts) I say let the PRTB hold the deposits. It'll be all over Joe Duffy how useless they are once tenants realise they'll be getting their deposits back in about 12 months. I presume if a landlord objects to the return of the deposit based on damage that a PRTB inspector must visit the property to make a decision. They haven't the manpower for this sort of thing, that much is obvious. Finally the sham that is the PRTB will make the media. Nobody will listen to landlords complaining but once it's the tenants.....