Welcome to the forum, dmarker. I agree with the other comments but think some very important things have been left out.
!. Did you buy your Martin new?
2, Did you fill out the registration and warrenty papers?
3. Did you send that paperwork in as directed?
4. Do you have copies of all this paperwork?
If you answered yes to the 1st three questions I would be talking directly to the Martin folks. You can find their "Service Department" phone # online, so give them a call. Next, if you do decide to have a luther work on your Martin you need to make sure that person is a "Certified Martin Tech". This is very important. If thay person is NOT a "Certified Martin Tech" your warrenty will be voided and you guitar will be worth less money if you decide to ever sell it. You don't want that to happen. Now, if you answered yess to #4 then that is good news. If you answered no then that's not really bad. Wigh all that paperwork your Martin can be sent back to the factory and you can have them bring it back to spec's. This may take up to a year to get your guitar back, due to their peoduction time, and cost some major bucks. If you did send in your paperwork but can't find it, all you have to do is call them and give them the year made and the serial # and they can go from there. There is a Martin Guitar Forum bub it wull take you weeks just to join. Anyway, my best advice is if you want to have your guitar worked on close to home you gotta make sure the luther is a authorized to work on Martin guitars. Also, before you take it in to be worked on you need to know / understand what you want done. Since your guitar is 20 years old and has been sitting up for awhile, repairs could be simple or major. You may only need a minor set-up. Then, again, you may need a complete neck re-set. Anyway, that's all I got to type.
Nela