This seems a project with a futuristic view, i would add more professionals like enginners, plumbers, tax advisors and even expert traders. But what happens in case that the expert can not answer your question? Can you reject the pay?
Yo uso Myetherwallet, fácil de usar, se pueden almacenar gran cantidad de tokens, no hace falta que descargues nada puesto que es web y tienes diferentes modos de asegurar la cuenta.