Rookie landlord needs advice

[Del Carreira]

Hello everyone, I bought my first rental property in November and inherited the tenants whom are an older couple and have been there for over five years. Just recently the tenant called me mentioning their daughter who apparently lost her own place has decided to move in and has basically overstayed her welcome causing a lot of issues for the elderly couple. She's not on the lease and sounds like he would like my assistance in getting her out of the home. My question is has anyone else had this situation and how should I handle this situation? Call cops immediately or put more responsibility on tenants who are basically now breaking lease agreements? Any help would be much appreciated. The property is in Winter Haven, Florida (Polk county).

Thank you in advance BP