Tenancy does not terminate with the expiry of the fixed term, if the tenant stays on , the tenancy rolls into a periodic monthly tenancy, In case of a joint tenancy , if one of the joint tenant stays on, the tenancy rolls into periodic monthly tenancy. A joint tenancy can be terminated by a collective action of all the joint tenants. Both joint tenant needs to hand over the vacant possession back to the Landlord for terminating the tenancy.
In a joint tenancy, all tenants are jointly and severally liable for the rent payments till the expiry of the fixed term.
That means that each tenant will be responsible for complying with the Tenant’s obligations under this Agreement both individually and jointly. The Landlord may seek to enforce these obligations and claim damages against any one or all of the joint tenants.
Your Landlord can chase you for the rent payments till the expiry date of the fixed term, even if you leave the rented accommodation, as joint tenancy can be terminated by a collective action of all the joint tenants.
If you wants to leave and other tenant wants to stay, then you can find a new tenant who can take over the ongoing tenancy from you, thus you would be surrendering your tenancy in favour of the new replacement tenant.
You can ask the Landlord to find a replacement tenant who can take over the tenancy from you, or the remaining tenant can speak with the Landlord that she is looking to stay and should sign a new tenancy with the Landlord.
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