Not sure if this email sounds good!
You have rented 10 rooms for one year contact. Our new policy is one can have maximum 5 rooms on 1 year loan and the rest should be taken out for only 6 months. could you please keep the ones you would like to have for 1 year loan and bring the rest back to us so we can work out to change the loan period for you?
Thanks for your cooperation.
Re: Not sure if this email sounds good!
You recently rented 10 rooms on a one year contact. Our new policy is to rent a maximum of 5 rooms on 1 year basis to any one individual, with any additional rooms on a 6 month lease only. Would you therefore please choose the rooms you wish to have for the 1 year period, and return the leases of the others for amendment to a six month period.
Thanking you for your cooperation.