Not sure about your request.
Tableau's sort is always from left field to right field, which means without moving Property name, it is sorted by property name first and
only few opportunity where seller name playing.
And even without considering property name, if you put buyer seller already put to left end, it's already sorting alphabetically and
sale date and sale price's sorting is very very small role..
Are you asking Sale data sale price combined descending sort after two names sorted alphabetically?
Perhaps the attached Tableau document will help. I have the parameter sort working, but I want it to performing ascending sorts where applicable (name, deal type, etc.) and descending sorts where applicable (SF, Sale price, etc.)
CBRE Tableau Sales Comps v3.twbx 88.0 KB