WordPress Real Estate Site Completion

My real estate website, focused on commercial properties, needs to be made functional. The previous web design company overestimated their expertise in backend coding and working with real estate listing sites.

Key Requirements:
- Experience with WordPress and client portal plugins is essential.
- Client portal features:
- Login and registration
- Document upload and download
- Messaging system
- Uploading photos
- Payment option
- Promo code application

There are also some minor design changes needed.

Ideal candidates will have a strong background in WordPress development, particularly with real estate sites, and a proven track record in implementing client portals.