Cost and scope for compost from organic dry leaves and/or domestic garbage

i am starting a processing center for dry leaves, organic domestic garbage with two objectives:  client wants his tree waste (dry leaves, garden trimmings etc) to be made into compost.  i have source to obtain upto 2 tons sorted organic domestic garbage.  expected quantity is around 10 tons per month.  now the question: is there a market for my compost? if so, to whom i have sell the stuff, and at what price season/off season?  will someone in the know dealing with various manures enlighten me?