You should ask for a guarantor’s agreement in writing when issuing a rent increase, or a notice to increase the rent.
A rent increase means that the guarantor will be liable for potentially higher arrears than they initially agreed to.
The guarantor’s agreement in writing is required in order to avoid them challenging their liability for the increased rental amount at a later date.
Information on this site is by way of general guidance only and may not apply in your particular circumstances. You should not act or refrain from acting upon information on this site without seeking independent legal advice.