Despite being here illegally, undocumented immigrants can buy a house. They can use a tax identification code that doesn't require a long credit history check, and some lenders don't ask for immigration papers.
For some reason I don't like this. I don't necessarily like the idea of helping lawbreakers continue to break the law. If people take issue with undocumented immigrants working and going to school, then perhaps they'd be upset with this as well.
In a nutshell, we're allowing people to own land in a country they're not allowed to be in. That makes little sense to me.