@Brandon Brown I have done this many times on buildings where it is required by code in Berwyn and surrounding suburbs.

For a co-signor we require a full application, screening and 4x the rent

This is a new requirement from the town (which we were not aware of) and while we have detectors in there now, they are not connected between the two sides. 

Just seeing who requires new owners/landlords to provide their financial documentation upon signing a management agreement?

:) )4) Do you heat/ air condition the common area?

I can put a combination lock on it but wonder if that will satisfy his requirements?

The lesson to me is jurisdictions can make the permit process to be painful, requiring tribal knowledge.

In California the DRE does not require you to join any association.

Mold requires moisture and food (dust is enough).

For non-primary residences, they have to follow all of the following rules to receive a permit: - the property must be a minimum of one (1) acre in size (designed as a precaution to disturbances)- The building standards of the underlying zone district must be met - Adequate parking is provided - Defensible Space requirements are met - Valid water and sanitation must be demonstrated - No more than five (5) bedrooms are in the dwelling As time goes on, they continue to become more strict on the rules listed above here, and are actively regulating it.