Squatter or Tenant? Only person in home did not sign lease.

[Chad W.]

One of my rental properties has not paid rent and an eviction notice has been filled. The person that signed the lease is no where to be found, but a relative of theirs (not on the lease) is living in the home.

What rights to I have to get them out of the home and what is the fastest way to make that happen? Are there any pitfalls to look out for or advice?