Identify the best migration path by starting with a sample dataset of a few thousand parcels.
Geoprocessing models can streamline the migration process for large datasets.
Start the parcel cleanup process in the source environment if possible.
Train your staff before the final migration and make sure they know how to use the tools for your editing workflows. Migrated sample data can be used for training.
Always use the latest release of ArcGIS with service packs installed.
Importing rights-of-way (ROWs) as polygons connects the parcels and allows you to run adjustment without having to add connection lines. Break ROW polygons at subdivision boundaries or into smaller segments. Remember that ROWs are also part of the vacations and dedications editing workflows.
Import and maintain lot parcels, which are needed to maintain tax parcels and are usually referenced in legal documents.
If the target environment is SDE, copy the source geometry to the target SDE before loading.
If the target is a file geodatabase, repair geometry prior to migration.
If you do not have a good subdivision layer, you may be able to dissolve parcels to create a subdivision layer.
Keep data modeling to a minimum and follow best practices for editing workflows.
When importing large datasets, import in descending order by size (i.e., first import the largest parcel types, such as townships, then sections).