I am interested in developing a Saas platform with multi-tenancy and SaaS usage monetization based on hosting in azure cloud on one subscription for a SaaS provider (SaaS company) which can issue invoices for usage on a monthly basis, based on realy usage for each tenant, or to allow each separate tenant to have its own subscription.
There should be multiple SaaS application edition with base, premium or custom module installation for a vertical industry like real estate MLS kind of web site which can allow tenants to have their own listing and management with the ability to list selected property on the main SaaS provider site based on a region.