I have a landlord that I mow for. It seems that every time I come there are cars parked on the lawn and junk all over the place. I cant mow due to the car mainly. My question is do I still bill the landlord the same amount each month even though I can not do 1 of his yards? Or do I deduct each time I can not do it? The landlord is aware of the problem also. My theory is that I am going to keep charging him the full amount. Any input would be appreciated!