Property App Development for iOS and Android

I'm seeking an experienced developer to create a property listing app for both iOS and Android platforms, inspired by the following sample: https://play.google.com/store/apps/details?id=com.smarteragent.android.kw

Key Features:
- User Roles: Buyer/Renter, Seller/Agent, Admin
- Functionalities: Listing, buying, selling, and renting properties
- Virtual Tours: Video walkthroughs of properties
- In-app Calls: Direct communication with agents

Ideal Skills and Experience:
- Proven experience in mobile app development, particularly in the real estate sector
- Strong UI/UX design skills
- Experience integrating video content and in-app communication features
- Familiarity with both residential and commercial property markets

Please provide samples of similar work and a detailed quote. Looking forward to your bids!