Without knowing the details about your start-up (sector / timelines / team / product or service) it is tough to give a concrete answer. But here are some good rules of thumb.

1) Know your story
Before any investor comes on board, you need a clear story to tell. What is your big idea and how does capital get you there?

2) Demonstrate traction
Proving that your product / service is successful on a smaller scale is a must have. A start-up without any traction is too dangerous for an investor and not interesting enough for crowdfunding.

If you would like to talk in more detail about how to tell a convincing story, or to demonstrate traction, give me a call.