The platform does not hold or restrict  newbie account from doing a signature campaign but what is the guarantee that the newbie would do a signature campaign without having issues with platform members as they have no expertise and experience how campaigns are being managed on this platform. There was an incidence few months ago which occurred in this platform were a company created an account and decided to conduct a campaign themselves but it didn't go down well with them as they got it very tough due to the unprofessional conduct of the team member who managed the campaign.

I would advise you up Se this thread as an announcement thread then contact a signature campaign manager to run your campaign for your organisation as they would handle it professionally without any issues. There are many managers here who can do that for your organisation. But if you insist on running it yourself and your ways, it would be nice you seek for an escrow to hold the funds as that would give members the confidence to participate in your campaign otherwise you would find it very difficult here to to cope.