First of all, believe in the area. Hempstead is a another place to live in fabulous Long Island!
in Hempstead, you are near Hofstra...students all over the US are getting smart and purchasing instead of living in dorms. Market to the students (and their parents).
Do virtual tours of the interior and get it on every website possible: Point2Agent.com, Trulia.com, ActiveRain.com, edgio.com, your own website, your company website, MLS....
I post on over 30 websites...and any time you want to refer it on...just let me know. I am currently marketing a home in Hempstead near Hofstra...showing it to lots of students.