Around here, oak goes for something like $200.00/cord. You really are doing the business park a favor by getting rid of it, and the firewood is your well deserved reward.
I "steal" firewood all the time when I'm camping -mainly dead juniper. It makes a wonderful hot campfire and keeps down a teensy bit of the slash which contributes to our wildfires out west here.
I suggest a Stiehl chainsaw, btw.
