[ramonesfreak]

That is how how it works

The problem with squatters, or should I say the reason why squatters become a problem, is because the owner is nowhere to be found to allege a trespass violation.

It’s when a new owner, either through foreclosure sale or inheritance etc, comes into the situation that the squatter becomes an issue

A guest who stays too long is not a squatter and neither is a tenant who fails to pay. Very different than a squatter

The OP has squatters because.....the owner is no longer there to testify to the various rights of the people living there

Once he becomes an owner or person with authority to act as owner, he will have the rights he needs to evict the squatters...in NY you name those squatters as “John Doe” in your eviction papers