Hi Jo
This is a forum for professional bookkeepers and accountants, not for businesses Im afraid, so we cannot help you.
I would suggest that you have a word with your Accountant, ensuring that you provide that Accountant with a copy fo the contract between yourselves and the letting agents.
__________________
Joanne
Winner of Bookkeeper of the Year 2015, 2016 & 2017
Thoughts are my own/not to be regarded as official advice,which should be sought from a suitably qualified Accountant.
You should check out answers with reference to the legal position