Write some Software

I am look to start a real estate web site with allot of features like a facebook login (taking all the info about the person as possible) owner can log in a upload properties virtual agents can login like [login to view URL] property owners can see and organize all there properties could the site record what users are searching for and save it on there profile? google maps integration possibility of having 3 different apps one for clients one for owners one for agents (not needed at the start) clients to be able to see options and prices on a map for comparison a compere property option and save, like button and recently viewed clients are able to report a listing if possible owners to have there own calendar for each place owner can link the tenant to there properties so that they can pay rent and utility's a history so owners can track activity invoicing system for agents owner and clients clients can book appointment's with agents online with a calendar owners and clients can link information on there property profile like agency agreements, contracts and client info (like save pdf) emails sent to owners and clients for everything finalized loan calculator and rent calculator (not needed at the start) reviews for agents and properties different views for different searches owners can change if its for sale, long let or short let site shows place similar to your selection search or ppl who viewed this also viewed promotion codes for discounts ect Options for the back end owners linked as I explained in the last meeting forgot what its called group actions to make updating easy like sending emails or marking as rented ... for example if a owner tells me all his places are rented for 6 months then I can do it easy and not one by one dates for long lets calendar for short lets like airbnb different views for different searches reminders for agents both with clients and owners advertising links blogs history and logs on everything reports on agents owner and clients emailing in bulk to clients and owners for different options like your rent is up will you need our service or happy bday and be able to be changed and improved as time passes agents able to have a options like if they select 5 places and can easily print or email them for viewings with only the info needed or able to send to clients with different info ect i want a site that takes the best from airbnb and zillow to one easy to use site that's specifically for Malta i have most plans ready and know exactly how i want things to work >> i also thought that wordpress was the way to go but its better to have it hand built regards