Need legal advice - possibly having a squatter at my airbnb

[Eric Wu]

Short version:  I Airbnb my townhouse at LV to a family of 3 for 40 days and at this point they refuse to leave.   Their last day was last week 9/19, they informed me they couldn't make payment to extend.   I agreed to let them stay till tomorrow the 25th but now they informed me they are not leaving because they haven't find another living arrangement.    I have contacted Airbnb to help resolve this issue.  

I have done my research and noted that they may have establish tenancy rights in NV.    I need advice and possibly an attorney referral to evict them.  

Thx in advance.