Is there any chance I can get the 3 months back rent my renters owe me?

Absolutely!  Ensure that when you file your complaint it is a two part complaint, one for possession and a second for money damages.  Then you'll be able to obtain a money judgment for the lost rent, and any fees allowed by your lease (including attorney fees).  You may want to contact an attorney to handle this for you, many will handle eviction cases on a low flat fee.  If your property is along the front range I may be able to help you. Good Luck, Don Eby