M-F software system similar to easy storage solutions??

[Steven Cowles]

Is there a multi family tenant software system similar to east storage solutions? I have storage, and am buying a 28 unit apartment complex, then pursuing a 72 unit. So I will have 100 doors to manage. Is there a software, like ESS, that creates you a website, allows potential tenants to access an online application for a new rental, existing tenants to log in and submit maintenance request, automated invoicing/billing and receipt of rental payments, etc. I like how user friendly ESS is and easy for my managers to operate, log payments, communicate w tenants, etc.