Just remember that accelerated courses don't mean less work. You may be able to take eight-week courses rather than traditional sixteen-week courses, but you won't be able to take as many of them at a time.
I'm not aware of a program specifically in Property Management other than Stevens-Henager, but as far as Business goes, you have a lot of options:
http://www.elearners.com/online-degrees/bachelor/business.htm
Price is definitely something to consider. If you're okay with general Business Administration you can find some pretty reasonable programs out there. What range are you thinking?
As far as which are scams, stick with our database, all the schools listed are accredited by an agency approved by the U.S. Department of Education.
-=Steve=-