I think that you should be looking for another job; however since you are blameless in your current job, you should stay there until you are either ready or the

I think that you should be looking for another job; however since you are blameless in your current job, you should stay there until you are either ready or the checks start bouncing - I say this because if he truly is a scammer and not just someone who exaggerates to customers, that will happen sooner or later. If the checks bounce, leave immediately (that day) and contact the labor board - they will get your money for you; and under no circumstances go back as an employee - if they want to pay you upfront as a consultant, and this of course is at your choice. In any case you sound unhappy at your current job and should get another one at a company you can feel good about working for.