is wholesaling illegal?

[Felix Goldstein]

That was really my biggest challange when getting started investing in real estate. i didn't read a lot of the post in the wholesale catagory, but i have not seen one taht address this. When i got started it seemed like everyone told me that "wholesaling" is illegal.  doesn't anyone know that it IS LEGAL to market a property as your own as soon as you have it under a purchase agreement or an option to purchase.  It will be interesting to read everyones responses.  

To bad toooo many "wholesalers" sign Joint venture or co-wholesale agreements. then they end up brokering without a license and that is illegal.