Rest API Design Review

Hi There Deliverable 1 x 2.5 hour meeting on a Sat or Sunday screen sharing and providing some advice. I currently work for the man and want to branch out on my own. I am wanting to start a digital financial services business based in apac and need a good mind to design the software services. Right now I just need advice & direction on the design of a restful api suite. I want to perform CRUD operations on a data layer over http. Each resource (object class) is intended to be a standalone microservice with its own front end. Security is important so i was thinking Oauth 2.0 as the mechanism. The users account would drive what methods/verbs are allowed on what resources Meeting Agenda 1. Review my Use Case 2. Review my open api design (3.0.0 Yaml) 3. Review authentication 4. Review hosting 5. Advise complexity 6. Recommend changes 7. Recommend stack 8. Recommend hosting options I need someone with a solid foundation building modern web applications. Ideal full stack expert knowledge in multiple languages & dbs particular for web based software. Knowledge of cloud hosting and server-less is cool. I want to get this to a point where I can hand off to a back end dev. It would really free me up to start prototyping/wire-framing and from some front end requirements. I'm not a secret millionaire. I'm working for the man and the man has got me down. So if you are in the same predicament and you want your own project then you sound like the ideal partner to move forward. If you are a Pro freelancer and you just want to be paid for the good work, I respect that to. Cant wait to read your application