It would appear that LanSweeper and WHD really don't have a way to sync ownership of an asset, as far as I can tell.
The attribute listing of 'Client Username' in WHD is missing "Owned By" or any relationship listing from lansweeper. The only way to actually map a client owner to an asset that syns from LanSweeper, as far as I can see, is by doing "Last Logged On Username" which is hardly a good solution (especially with shared boxes or servers).
Is there something I am missing? Surely there has to be a way to sync a client-asset relationship from Lansweeper into WHD.