Suggestions? - Two Vacant Freestanding Buildings In Mall Area

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Hi Fellow Investors. I have knowledge of two freestanding commercial properties that have been vacant for years. Both are within a mall area. There is no for sale or for lease sign on either. When I google the addresses the only thing that comes up are the old occupants that vacated some time ago. Both buildings used to restaurants of national tenants. Having hard time finding the current owners. It was not listed on the county's taxation real property database but did send email today for more information. As a newbie, what would your next step be and what would you consider doing with these properties if for sale. They are located next to each other, resides in a mall area, across the street as well is another shopping plaza. All cross streets has very high traffic volume. Any suggestions?