New answers tagged workflow
2
If you have access to the dissolve tool in the Datamangement Toolbox/Generalization, try using that. Select the file you want to dissolve and click on 'Environments/XY Resolution and Tolerance'. Set the XY Tolerance to for example 100 feet. Be aware this whole process leads to generalization of your data and you might have to play around with the tolerance ...
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I would try this as a test, if it gives you a good result, put it into a SearchCursor (arcpy or arcpy.da) that runs through all owners:
Select out the parcels for a single owner into a new feature class
Buffer those polygons by 100 ft (51 ft, or 50.1 ft, may be better)
Dissolve by owner to merge overlapping buffers (or do the dissolve as part of Buffer)
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ArcMap: Dissolve
Or you can manually select the parcels and use Editor: Merge. This could be scripted for large files. Dissolve is built for this task, and I believe it comes with every license of ArcMAP.
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