Crowdfunding expert(s) needed to raise funds for Johannesburg based NGO

Good day! We are an NGO in Johannesburg that assists women, children and people with disabilities. We require a crowdfunding expert or a team if possible and/or necessary to assist us in raising funds through a crowdfunding campaign. We need to raise USD 70 000.00 as a matter of urgency. We will of course be sharing details of the organisation and project for which the funding is for with the chosen freelancer(s). We are willing to work on a 10-12% commission basis depending on the proposals and recommendations. We would require the chosen freelancers to sign an agreement entitling them to the commission amount as well as to sign an NDA. We hope to build an ongoing relationship with the chosen freelancers. Please include in your proposal a portfolio of work and crowd funding or fundraising successes. We look forward to hearing from you.