Landlord letter

[Terpe]

We are nearly done gathering our documents but they said all docs should be 28 days before applying ..he get letter now because his landlord is going to holidays

I stand to be corrected, but the way I understand the immigration rules is that only financial specific evidence relating to a period which ends with the date of application, must be dated no earlier than 28 days before the date of application.
So basically this would be latest bank statements/payslips/employers confirmation letter etc.

So that landlords letter relating to accommodation will be fine.