In this case, the tenancy at will is terminated as soon as the new lease is completed and is usually agreed on the basis that if the new lease fails to complete within a reasonable time period, then the tenant must vacate the premises.
The tenancy at will is terminated as soon as the new lease is completed and is usually agreed on the basis that if the new lease fails to complete within a reasonable time period, then the tenant must vacate the premises. This was in this case.