Web Developer Needed for Back End

I am looking for an experienced development and design team to develop a back end system where I can create users to login and manage their services. This is for real estate agents who I sell my services to. Back end should be able to

Full Menu to manage their services
Send E-mails
Manage Leads
Leads will come in through various websites, we need to figure out how to get these leads in their management

Please contact me for full details