Loudoun County - Sterling, Virginia - Sell or Hold?

[Gilda VanderHeyden]

We have a townhouse rental in Sterling, Virginia. Was just curious what your thoughts are about the Northern Virginia (specifically Loudoun County) Real Estate Market. More specifically,

1. Do you think there's still room for further appreciation in the next 3-5 years?
2. If you own in this area, are planning to keep your property/properties?
3. What are the reasons behind this?

I have already consulted a few real estate agents in the area; many of which advise that it's still a hot market and now is a good time to sell.

Thanks in advance!