There is no express time frame but typically if they are permanently on premises beyond a week or two they can claim rights. As far as them leaving, yes, if they refuse to leave on their own, you would need to obtain a court ordered eviction.
If your name nor signature is nowhere on the lease or you live with the owner of the property, yes they can ask you to leave. No 'eviction' is needed if you never had a contract. If you don't go they can have you warned off the property and can file a violation for trespassing if you come back.
Yes, you can add a tenant to an existing lease. While it's not the most simple process, it's not uncommon for a tenant to request to add a roommate or partner to their lease agreement. However, a lease is a legally binding agreement, so it's crucial to ensure each tenant is listed within the contract.
You give him a written notice to move, allowing him one month as required by Texas law and specifying the date on which his tenancy will end. If he refuses to leave after that month, your recourse would be to file for an eviction in court.
Any roommate who is named as a tenant in the tenancy agreement is presumptively a tenant with rights and obligations under the Act; whether any roommate is a tenant or not is ultimately a legal determination that can only be made by a Residential Tenancy Branch arbitrator who will weigh the factors in favour and ...
“Texas recognizes two types of co-tenancies which may be deeded: a tenancy in common and a joint tenancy. . . . Under a tenancy in common, the deeded interest descends to the heirs and beneficiaries of the deceased cotenant and not to the surviving tenants. . . .