This Q&A assumes that the 'relevant building' is in England. Sections 116–125 of the Building Safety Act 2022 (BSA 2022) and BSA 2022, Sch 8 set out provisions intended to protect leaseholders in multi-occupied residential buildings from certain costs associated with remediating historical building safety defects. Most of the protections apply just to ‘qualifying leases’, ie, under BSA 2022, Sch 8, paras 3–9. However, the protection under BSA 2022, Sch 8, para 2, ie, no service charge payable where landlord was responsible for defect or was associated with responsible party, applies to leases more generally. In order for a lease to be within the definition of 'qualifying lease' for the purposes of BSA 2022, s 119, it is necessary that (among other things, and subject to the important caveat below): ‘...at the beginning of