Hi Lisa,
Be very careful how you approach this, as the oven will probably need cleaning, everything will need a clean and cleaned again. This would have to be the best clean you have ever done, the Housing Officer will inspect with a white glove and any residue, he will pick up.
I should know my hubby does inspections before the housing officer comes in, as he used to conduct march out inspections for RAF, so he covers me before anyone offical comes on.
You will need toothbrushes for windows frames and small crevises, cocktails sticks, etc.
When I mean be careful because if every party involved isn't clear then the current tenant will be charged in more ways than one if they find anything wrong, plus he could try and make you responseable.
Didn't want to scare you but they have to have over and above the best service.