I typed out a long description of why I think this idea will flop like a injured fish. Rather than getting into too much details and spending a lot of time retyping, there is always a reason why a business isn't busy. We don't need to go into details.
So, you are trying to say.............."You are a 2 million dollar lawn outfit and you see a failing business. You decide to take them under your wing and pass out coupons for their business based on your customer base."
I would be led to say that this restaurant has their crap together, strong management team, service oriented employees and a fast delivery service. If your name is attached to their success...........you success is also attached to their name.