Where do I sign up? $4,500 and you wash my cars/house, mow the lawn, fertilize, clean up trash weekly, and plow my driveway do Spring/Fall cleanups etc? I don't know the legelese of your contract but with all of the services you are providing it will leave a lot "up for interpretation" once clients sign up, especially with double return if the customer is unsatisfied. Using this model you will get burned by more than one customer.
John Deere Z Traks
and a lot of excedrin