First, we would have to make sure you do in fact owe more than the market value. Freddie operates a little differently than Fannie, but essentially it is a little tricky to do a short sale when you are current on the mortgage.. I had a customer recently who was able to buy a new home elsewhere and rent their home in Mechanicsville. That could be a real option to you if you are able to get approved carrying both notes. If there is a hardship that will cause you to get behind in the near future, then potentially a short sale would be possible.
Would need to have a look at your property, do a market analysis, and suggest a plan thereafter.