Either the Clarion Hotel or the Bavarian Inn. Right now they are doing some construction in the area of the BAvarian so take that into account. Also the MSO concert and fireworks show is going to be July 7th at Antietam Battlefield.

And it's Shepherdstown

We would like to do an overnight trip in this area (either beach or mountains). We have a 1yr old and a 2.5yr old. We would love to go to the beach but would prefer to avoid crowds and traffic. We were thinking of Shepperdstown, WVA. What's the hotel there that everyone recommends?