Any realtor can assist you with that information--Identify the property you are considering, and voila!! you can have an answer! It doesn't cost anything, either!! We do things like that as a service to anyone who asks!!
The asking price of a foreclosed property - THAT IS ON THE MARKET can easily be obtained here on truliaÂ®, many properties that appear as foreclosed or lis pendens; do not yet have an asking price. The selling price can be viewed at the Miami-Dade Appraisers website, after it closes.
A licensed Realtor with MLS access could certainly provide you with that information. Otherwise you can do it on your own under the 'Find Homes' tab here on Trulia - mouse over 'Find Homes' the tab in green at the top of the page and click Miami Foreclosures (for example) although if they are in preliminary stages, they may not have a list price yet. Then to see sale price click 'Recently Sold Homes'.
Otherwise myself or any other Realtor on this site I'm sure would be happy to assist you!