If there was any malicious
intent, it is criminal damage. That is a police matter.
This is a party wall even
though it is actually on the boundary it is classed as a party wall however he
should not have done this without your consent.
The reality is that if you
did not give consent, it could have ended up with a very expensive argument if
he wanted it and you didn't.
The problem you face now is
that removing the paint is going to be an extremely expensive and difficult task
although that is not to say that it is impossible.
The landlord actually has no
liability in this although you may be entitled to compensation from the tenant.
I don't think it is going to be a lot and it depends whether you want to go to
court over it.
Does that answer the
Can I help further?
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