I would do this by converting your document into a table so that each paragraph is a new row. Then I would add an index column (numbered from 1 to n), plus a column for each check item. Once you have this structure, there are options as to how you can filter/find your outstanding task progress.

It would be simpler to use MS Excel for this as the autofiltering functionality is easier to use.

__________________
Andrew Lockton
Chrysalis Design, Melbourne Australia