Flask SQLAlchemy setup

Looking for an expert in Flask SQLAlchemy Marshmallow to help set up an initial framework. Help will include taking an initial, very small application and answering questions / correcting / giving direction for setting up table relationships, best methodology for REST actions, and error handling. Looking for about 20 hours of help over a couple weeks. Linked [login to view URL] is the starting point of my learning. MUST be very experienced in Flask, Marshmallow, PostgreSQL and have coaching ability.