Greetings,
We have read Project Description & understood the initial high level requirements but yes you are right, we definitely need complete technical requirements or at least one online technical session before finalizing the total cost, payment terms. Event hough, our tea already worked on few Property related portals, so we are aware what is involved in such Applications but as you know that every client requirements are custom, so we have to follow them, so please drop me a message thru' PMB to start further discussion about your project, as we cannot write much on this initial message bard due to limitation of characters.
Our current bid is just a ballpark estimate but once you respond us, we can then negotiate it & finalize, as we are flexible in prices.
Please check out our Freelancer profile https://www.freelancer.com/u/leadconcept.html, as we have delivered many successfully projects lately and let me know, if you want to see some of our recently developed projects.
Look forward to hearing from you.
Regards,
YK
LEADconcept