@Renee329
Hi Renee, This is a situation I haven't been aware of until now.
I am the host living in my own home with a guest suite downstairs, and with no requirement for a co-host. So I do not know how hosts and co-hosts usually work out the issue of reviews.
When I stayed once as a guest in an apartment whilst on a short getaway, the mother (Host) lived nearby and her daughter (Co-host) lived in another city. My messages re arrival time, key pick-up, parking, etc, were answered by either the host or her co-host - both were on the job. Both names were mentioned on the listing, and both ladies' names were usually mentioned in great reviews by guests.
In your case, I feel that it doesn't seem right that you receive no reviews for your "lion's share" of the responsibility for the guests' stays going smoothly.