Thanks!
The soft shadows were achieved by setting the LightsourceAngle to be greater than the default. That is under the directional light properties. You have to click the little down arrow to expand the properties to see the option. These type of soft shadows can only be achieved using a static lighting lightmass rebuild. You will probably want to use a production rebuild quality if you have a fuzzy light source (aka large light source angle) as it uses multiple passes to create the blur, and lower qualities use fewer passes.