Quick Way To Scrub/Remove List of Direct Mail for Home That Have Been Sold

[Kelly M.]

I send out direct mail to probate properties so my list is manageable in the range 500 to 800.  I scrub the list each time before I send out the list to remove homes that are sold or listed.  This is a laborious task.  I look up each property on Redfin to see if it has been listed or recently sold.   Is there a service that can do this for me?  It is all public data in Ohio, so I'm hoping there is someone who has figured a computerized way to do this.  I would like a way to upload a list of addresses and then return to me its status.