Listsource Absentee Owner Lists

[Jeff C.]

For absentee owners lists obtained from Listsource, there are properties that have different addresses that are right next door to the property owner mailing address. How are you guys cleaning this up quickly in Excel with out going cell by cell? Don't want to mail to a property owner mailing address with the targeted property (parcel lot in most cases)  right next door. Would, at least, want property owner to live a block away from targeted property. Thanks