I have a similar sized room about 12x17. I bought M60's along with the rest of the top of the line Axiom speakers. Thinking back I should have gone smaller for the room dimensions. I'm betting for your room size that the Grand Master or Epic would work well. Plus consider how loud you will realistically have the speaker volume in a condo.

I did apartment living for years and I had to have some consideration for my neighbors. I am sure this applies to attached condo's too.