A family of Microsoft relational database management systems designed for ease of use.
You appear to have a hierarchical structure, so your tables would be related by a series of one-to-many relationship types like this:
ContractTypes---<Areas---<Properties----<Documents
The Documents table could, in addition to columns (fields) representing the attributes of the documents (description, date etc.), also contain a text column containing the paths to the location of the document files, which could be Word files, image files etc. It would then be a relatively simple task to open each document in its associated application from within the database.
For the user interface the most likely set-up would be a Properties form, in single form view, within which is embedded a Documents subform in continuous forms view, linked to the parent form on DocumentID or similar.
If you are relatively new to Access you might like to take a look at DatabaseBasics.zip in my public databases folder at:
https://onedrive.live.com/?cid=44CC60D7FEA42912&id=44CC60D7FEA42912!169
This little demo file, as its name suggests, provides an introduction to some of the basic principles and methodologies used in developing a relational database in Access.