I doubt your company is a C Corp. instead of a Partnership. Owners for C Corp is named shareholder, they are called partner only in Partnership. For partnership, partner MAY BE personally liable for company's liability depends what kind of partner you are, general partner or limited partner.
Take a look of your company's name, if it's ended with Corp or Inc, it's C corp. If it is named as xxxpartnership, it's partnership.
If the company is to sponsor your H1B and withhold your salary till half year later, how could "prevailing wage" requirement satisfied? Anyone knows that? Many thx!