Developing a WordPress Plug-in

Hello,
I need WordPress plugins with below features:
- Connect to MLS or realtor.ca and show the property listing
o Update frequently
o Categorize the listing
o Search

- Generate the real Estate leads from Google & Facebook and any social medias
o Categorized by Geographic
o Update automatically
o Has a CRM

- The client can log-in on website and add his/her property to the website

P.S. The security is the first priority for this plug-in