for any real estate company is more simplier to find a proprety whit the reference nuber. this numerical sistem is used on all real estate agency.
i see on some multi real estate agency site that the rif number can be or automatic or ovrewritting manualy. it owrks on this way for the multi agnecy:
all the agnecy have a short code name ex: gold & gold real estate chicago will have the code GGC
on this company one agent will be bookt on the site and he will have a shord code too like jhon smhit his code will be JS
all of his proprety wil have the code GGCJS XXXXX
where the xxxxx can be an incemental automatic number or can be overwritted. on this way it will be for who works in tho know exatly which persono or agency have that proprety