Advice please for landlord hoping to sell to tenant? Tenant has occupied property for many years without issues, wishes to buy and I wish to sell - price agreed. EPC and gas certificate in place. Because I wish to sell property anyway, as backstop to failure of tenant to complete sale I propose shortly to serve section 21 (currently 4 months notice) using Form 6A, so that I can then sell on open market. Tenant has been advised and aware.