Restrictive Declaration

We need to file this form with our building permit request bc we have a 3 fixture bathroom in the cellar. Where do you get it? I have found many other versions of the form, but not specifically for the cellar – as “no living, sleeping, cooking is permitted in the cellar and in no case shall the cellar be rented independent of the dwellings above.

Do I need a lawyer? And if I do, who handles this? My RE lawyer did not know