Where in MD? I am in MD, too (Potomac). If you're near NOVA/DC I would recommend taking a look at TechShop in Crystal City, VA. That's where I go to do my work. They have a couple of CNC routers you can use (if you're interested in learning) and even a waterjet if you need to cut metal. Otherwise, depending on the job, I may be able to do something locally for you...but my car isn't very big. If you have plans ready and are able to drop wood off and pick it up from TechShop I'll do the cuts for a nominal fee (it takes a while to set up the machine and prep the g-code files).
Then again I would recommend just getting a membership ($150/mo month-to-month w/a referral) and learning the machine so you can do everything yourself...