Reading your telling of the situation, my tingling sense are suggesting that their spouse is getting greedy. I'm assuming that you paid for the marketing servi

Reading your telling of the situation, my tingling sense are suggesting that their spouse is getting greedy. I'm assuming that you paid for the marketing services at a going rate. You have left unsaid whether you have a spouse and what their view is about the company, your cofounder and their spouse. I also get the impression that you and your cofounder might not be 50:50 partners. Of course, my comments assume that you don't yet have outside investors or stakeholders. If you do then they need to assist with your decision making. Assuming you do need the full-time services of the cofounder's spouse, make her two offers, 1) at the going rate for that role and zero equity; and 2) at a discounted salary and with a small amount of equity, taken from the cofounder's share of equity. If you don't retain majority of equity, then your company can be easily stolen from you.