Help, Inhereted tenants issue need advice

[Josh D.]

Hi. I purchased a rental property earlier this year (my first rental purchase) with inherited tenants. The lady who pays the rent wants her boyfriend out. She called the police and they can’t make him leave because there’s no proof he’s not on a lease. There is no lease in place, just month to month renting. What options can i provide her to get the boyfriend out and enter into a new lease with her? Can i just tell him to leave? Or? Thanks.