Keep condo with great tenant or sell without sales tax?

[Jesse Valle]

Recently moved from LA to Seattle (1 year ago) therefore, I can sell my condo without paying sales taxes (if I do it within the first years), however, I have a wonderful tenant that has been paying my mortgage punctually and the condo is expected to appreciate due to a metrolink rail extension (currently happening) and to the opening of a downtown area along with new Disney studios. Should I sell and invest in the Seattle greater area or keep it and miss out on Seattle’s expanding house market?