2141 S. Ellis Ct, Sold June 13th for $413,000, it did not show a main floor office but did have one in the basement. There's 3 other homes in the neighborhood that might work for you. Take a look at them with the following link and let me know if you want to go take a look at them.
The office is in the Basement and it sold in 6-13-08 for $413,100 and was on the market for only 17 days.
You can find all the AVAILABLE homes on or site http://www.kennarealestate.com
map search and more, even all foreclosures.