Is a Guest Residence permitted and under what criteria?

Yes and must meet the following:

The square footage of the guest residence shall not exceed sixty percent (60%) of the habitable square footage of the primary residence. The guest residence shall have approved utilities. The parcel of land containing a guest residence shall remain in single ownership.

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.