A property manager’s email address is required when applying for a rental property through 1form.
You can search the agency’s website to find the property manager’s email address or you can contact them directly.
Many agencies also allow tenants to apply with 1form through their own website and some of the third party websites they advertise on. If you see a 1form link on one of these sites, this will take you to the online application on 1form and autofill details of the property and property manager (including email address).