Capital Gains taxes

I have a question on Capital Gains taxes:

I rent a condo in NJ and I own a condo in Jupiter, FL that was deeded to me a couple of years ago.

I currently have the condo in Florida up for sale. My question is when I sell the condo in Florida, what are the rules regarding capital gains taxes and is there a way to avoid paying capital gains taxes? What is the capital gains tax rate?