Complaint Review: Palm Towers LLC

My mother and I share a 2 bedroom apartment at royal palm apartments.  the complex recently went under new ownership on or about December of 2011.  The current owners ask for $850/mo. for a 2-bedroom apartment.  under the old ownership, i paid $975.  My lease expired in March of 2012.  Since then,  I have, on 2 occasions, written to the new owners for a renewal of my lease, to include a rent reduction.  I have not heard from anyone. 

I did some investigating, and found out, in writing, that I am not the only tenant that pays a diffrent amount for rent.  There are several other tenants that pay different amount for their apartments.  It's as if, they are renting the apartments based on a person's income.  And, that's not fair.  All of the new tenants get the new rates $750 for 1-bedroom, $850 for 2-bedrooms.

I want something to be done about this.  I don't have "move-in" money for anywhere else.