What follows from the classification
Every lease gives the landlord a right to forfeit if rent goes unpaid. Ordinarily the court can grant relief — cancel the forfeiture — once the arrears are paid, and in practice that is what happens. The exception is the one that bites here: where the tenancy is assured and at least three months’ rent has been more than three months overdue, the court has no discretion. It must terminate and give possession back to the freeholder.
The amounts involved can be very small. Three months of a £300 annual rent is £75. A dispute about whether the rent was demanded properly, or an unopened envelope after a change of managing agent, is enough to start the clock, and the lender with a charge over the flat may not find out until it is too late to put it right.
That is the risk lenders are pricing. The probability is low — the master wording for the related indemnity case calls the risk of repossession “exceptionally low” — but the consequence is the loss of the security entirely, and that combination is what makes underwriters cautious.
What can be done
Before exchange, the seller can be asked to approach the landlord to vary the lease and bring the rent below the threshold. As with any variation, the landlord need not agree and the seller may not want the cost.
Indemnity insurance exists for this risk, but it is not automatic and it is not always on offer. Where the lender will accept a mortgagee-only policy and somebody will pay for it, that is a separate situation with its own wording — see <i>The lender wants indemnity insurance for the ground rent</i>. Where no policy is being offered, as the master wording here records, the position is that a future sale may need one arranged at the time and at the seller’s cost.
After completion, variation by agreement and a statutory lease extension are both open, as they are for any onerous rent clause. A statutory extension of a qualifying flat lease substitutes a peppercorn for the whole of the new term, which removes the threshold problem rather than managing it.