I have to identify the rhetorical devices in this article race, class, and real estate by Sheryll D. Cashin august (2004)

I assume this is the article.

http://www.washingtonpost.com/wp-dyn/articles/A29454-2004Jul31.html

I suggest you make a list of the rhetorical devices you've studied. Include a brief description or example of each of these.

Then, carefully go through the article, looking for these devices.