[nm] Housemate's Girlfriend Moved In Without Our Consent Or Signing The Lease. She Has Stayed Full-time Since January 2025. Does She Have Any Tenancy Rights? How Can We Limit Her Time At The House?

I live in New Mexico with two other people who signed a one-year lease for a home. One tenant's girlfriend started spending an excessive amount of time at the house. She stays the night every night and is home even when all of the tenants are away (myself included). This has been happening slowly since the lease was signed in November of last year.

She does not pay rent, utilities, or contribute to any cleaning or upkeep. Additionally, she parks in the "visitor lot" and a neighbor threatened to have her towed. She never signed the lease and has an apartment of her own in town - technically I believe she is a visitor.

The lease never defines a "guest" but does state "Tenant agrees to limit the number of occupants to no more than three persons. Landlord consents to the occupancy by only the following persons: (three tenant names here, not the girlfriend)".

We (the other tenant and I) want to set our expectations for a "guest" and limit the time she (or any visitor) stays at the house to 50% and consent of all tenants. We do NOT want her to be included as a tenant. Living with her has been a nightmare.

My question: does she have any legal rights after living with us for 6 months without signing the lease or without our agreement? Can we make limit the time she stays at the house? If she doesn't listen, what else can be done?

Thank you for any advice. I'm tired, fed up, and frustrated that we let it get to this point.