If someone showed up at their house and claimed it was now their house due to annexation, they’d be on the phone to the cops faster than you could imagine.
They actually have tried that (more than once) and it was harder to evict them than you would think.
Police had tried multiple times to get the squatters to leave the home, including using a helicopter and armored vehicles, The Sun reported. They were able to get a search warrant after pulling over Michael Lawrence Warren, one of the squatters, for a traffic stop and discovering his identity and criminal history, which included sex offenses.