I found two great houses boarded up! Need help

[Justin Frye]

I recently just found two houses that were boarded up in a great neighborhood right by my house. There in a great location I believe they are right across from a park in a semi rural area. I want to take advantage of this deal because I believe it would be a great find and profitable flip. But there aren't any signs up on the property indicating  prices, foreclosure or anything for that matter. Any advice would be great:)