The Big Apple is seeing a troublesome trend of unwelcome squatters illegally bedding down in private homes and apartments in the five boroughs — and it’s gotten much harder to kick them out. A backlog of housing court cases and changes in the law in recent years have made it a bigger and longer-lasting headache for landlords to boot unwelcome tenants.. “This is happening far more now than in the past.. Squatters have become far more sophisticated than before. They set up elaborate schemes, fake documents and investigate the homes before breaking in.” Two changes in city law in 2019...