22 Apr 2026Form 4A errors tenants can use to invalidate a rent increase (from 1 May 2026)
From 1 May 2026, every landlord in England serving a rent increase under Section 13 must use Form 4A. Not Form 4 — that's the old version, which applies to notices served before 1 May. Not an email. Not a letter on headed paper. Not a polit
