I have never been offered rent in advance but have a family from overseas who are offering to pay 1 years rent in advance as they have a lot of savings. Their prior employment and landlords provided a reference for them and they have visa’s to come to the UK etc. They have failed the comprehensive referencing as no UK history as did their proposed guarantor.
Who was that? Where are they from and how many family members? I take it that they have not arrived yet from your post. Do you have proof of not only savings, but their spending history via last 6 months’ bank statements and payslips from previous employment?