The Owners Corp could grant permission for the fences subject to signed agreement on certain conditions established in a by-law, such as (for example) …
- The agreement must be renewed every year at the AGM
- The fences will be properly maintained by the respective owners, including fences that back on to common property.
- At no point wil the owners use the existence of the fences as an argument in any claim to resume common property into their lot.
- The fences will be removed, as appropriate for each lot, PRIOR to sale of the unit.
- Any breach of this agreement will result in the fences being removed at the lot owners’ expense.
If you explain to the pet owners that these conditions are to protect the Owners Corp from future owners, not them, they should be amenable.
And if they’re not. just say no.