Cantilevered Wooden Deck Design

I need a skilled contractor to evaluate and suggest necessary modifications on a project under construction, a cantilevered wooden deck primarily for entertainment. The deck will be situated lakeside, enhancing the view and experience.

Key Requirements:
- The structure must extend from an existing beam, which is 12 ft above a poured concrete footing and 5 ft wall and currently spans 14 ft. The deck has an 8 ft backspan. It is planned for a 4 ft cantilever. The beam is Prowood Truframe 2x12.
- The design must account for the proximity to the water and ensure safety and stability.

Ideal Skills and Experience:
- Expertise in cantilevered structures
- Proficiency in woodworking and deck construction
- Experience with lakeside construction projects
- Knowledge of local building codes and regulations
I'm hoping to schedule a paid phone conference prior to extensive planning/design.
I'm interested in examples of similar projects.