Close, each part of the collection will be a named part of the collection so:

AddressCollection.name

AddressCollection.address1

etc.

The values will be based on the iteration so the variable you will use for the word document word be %(ForEachRow_Name), etc.  The iteration of the For Each Row task will correspond to the entry order in the collection on the form.  Note that in the properties of the For Each Row task, you have to select the collection name.  Hopefully it goes without saying that you before all of this, you do have to have a Retrieve Laserfiche Forms Content task where you bring in the collection to WF.

That's not necessary. Tables expose a token for the whole table in Retrieve Business Process Variables. You can then use that directly into the Table Merge of Update Word Doc.

For ex, my Forms process has a table (called "Table") with 2 columns ("Column 1" and "Column 2"). In Retrieve Business Process Variables, I picked the table:

Then in Update Word Document, the table is available in the "activity" section and the columns are in the list of values:

If you use TableStart tags in your Word document, each row will be replicated as a separate entity. It does not have to be rendered as a table, it will just follow the format and insert each row as a separate block.

This will result in separate address blocks.