@Nanette64
Yes, sadly all the reviews will stay with the property management company and you would have to start over if you terminated your arrangement. Most large scale property management companies do this and new Hosts are not aware of the consequences. I would take a look at what your contract with the property management company and review what it says about terminating the arrangement and listing reviews. Most large property management companies do a terrible job managing the listings. Just type the name of the one you chose in the search the community box and you'll see what I mean.
You should never allow a property manager to be named as primary host/owner. It is better to setup the listing with you as owner and then hire an experienced Co Host. You can then name the Co-Host as primary Host if you want and you would appear as Co Host to guests (however, you retain ownership of the listing). If you end your relationship with the co host at some point, all the reviews stay with you...they don't go with the co-host, unlike the arrangement with most property management companies.
Find An Experienced Co-Host
https://www.airbnb.com/resources/hosting-homes/a/find-the-right-co-host-on-airbnb-695