Man this agency's story is so full of holes.
They don't know who the cameras belong to, but they can't possibly remove it because it's "a high-end system costing thousands of dollars"?
Fuck "an official request with the real estate agency to terminate the lease", the people running the agency are criminals. So is the owner of the property, if they had any involvement in this. They should be arrested and gaoled; this is not some petty civil dispute.