About Supervisa income/employment letter

[Alexxu]

Hello,

I have a question regarding employment letter to support my parents supervisa. I co-own a business with my business partners and I also serve as a GM role at the company which getting regular salary. I will submit my NOA and paystub but how should I do my employment letter, should I state my role at the business and also as a co-owner and signed by my partners as board of directors?

Thank you in advance!