Originally Posted by Seattle2k
A local nursery will also be helpful. They can suggest the appropriate grass and direct you to a soil testing lab. With budget cuts happening everywhere, many university coop extensions have closed. That being said, University of Massachusetts takes soil samples by mail. http://soiltest.umass.edu/services
I would get the "Routine Soil Analysis" and "Soil Organic Matter" tests done. $15
Don't mean to get into a possible battle over semantics, but nurseries do not deal in turfgrass. Most of them are opposed to it since grass will take water and nutrients from their actual product. They typically kill off grass and certainly don't care how it looks.
Same for going to a "landscape" store. Stein's sells flowers. Home Depot sells, well....
Go to the pro's if you want real answers. Check the state and national turfgrass associations (http://www.turfresearch.org/
, for Florida: http://www.ftga.org/