I think what you are trying to do is extremely dangerous. 'Founder' is not just a title, its also a role - that role does not exist in your startup - understand

I think what you are trying to do is extremely dangerous. 'Founder' is not just a title, its also a role - that role does not exist in your startup - understand that and let her also know the same. Otherwise you will just be lying to her and both of you will figure out in sometime which could lead to a major disagreements which is the biggest startup killer. If she is willing to take as much risk with as much commitment you can offer her a huge percentage of stocks which is something that she will value as much. Also, incase she thinks that your setup is a good match and understands the extreme difficulty of getting a committed startup team together she shouldnt have a problem with it. Getting a committed and talented team which can work together is the hardest part of a startup.Everthing else almost always works out. Consider this the biggest opportunity as well as the biggest challenge you face.