Up until now there have been two types of notes associated with sales properties, the standard notes which are round on all records (landlords, jobs, etc.) and the sales activity notes found on the Sale Process menu, which are often linked to a particular buyer or the vendor.
These notes have all been moved to the main Notes tab, so there is only a single place to look for them now - much easier.
When adding a new note to a sale property, you can choose if the note relates to a particular person (people currently involved in the sale process are shown near the top, but you can choose anyone from the list), or if it is simply relating to the property only.
Linked notes will be highlighted on the notes list, and you can additionally filter by particular people just to see their own notes.