How do I write a contract to receive payment for my soon-to-be trademarked logo art and organization name?

18 months ago a close friend approached me, (I'm a professional graphic designer) about her idea of starting a local women’s entrepreneurial group. I was enthusiastic and supportive and after several more discussions (while we ran our 4m loop), I came up with the name “Arlington Women Entrepreneurs”- we’d call it awe! for short. I designed a logo, put up a basic wordpress website and maintained it for 14 months, photographed monthly meetings for social media postings and for the site - all told about 120 hours worth of work. I would frequently have meetings with my friend but of course, never got a contract spelling out my role in the organization, and stupidly made the assumption that when it became legit (whatever that means) I would begin to receive remuneration of some sort or have a role in it's direction. The group has taken off and she is dedicating herself to it full time. In the meantime she is investigating opening up other chapters and possibly getting either a nonprofit designation or some other business structure. She has also hired an amateur designer to help her with social media. When I told her the art getting created was not of a professional quality, she informed me I was not a partner and to butt out essentially. Yesterday I trademarked the name Arlington Women Entrepreneurs and the logo mark. At this point I’d like to proceed with getting a contract written that spells out that I will be paid henceforth and that if she wants to continue to use the logo and name, I’d need to be paid. Also if other chapters will be using the logo image, (she is coming up with another “A” name since obviously it can’t be Arlington ie: Awesome Women Entrepreneurs) I need to be paid each time a new chapter is formed. I've never drawn up a contract like this and not sure where to start. I also don’t want to come off as snarky about the whole thing but professional and matter of fact-that I was kind enough to assist her in getting started for 18 months but that now, I would like a return on my investment. We’re still friends and I’d like to keep it that way. She has asked me to give her a quote on increasing the capabilities of the website so ideally, I'd like to roll the other aforementioned fees into the quote to make it realistic that she can pay me in a reasonable way as the business grows.