In my experience, getting credit lines/cards for a small business is something that needs to be done by the owner, CFO, or treasurer. For DMS, that means a board member and/or treasurer. One of the reasons that past attempts failed, in my opinion, was that the person who tried did not have any ‘official’ title within DMS. That is why I haven’t started the process, or volunteered, despite it being one of the items on my statement of intent.
That said, the one thing, I think we can do, is start pulling together our financial records to present to the bankers when we do sit down to talk with them. David, @Photomancer if you and I can do that when you have a chance that would be great. What I see is pulling our monthly revenue and expenses for as far back as our move to the current location. If possible break down our expenses between required and discretionary. In addition your data on membership growth would be helpful for producing projections of future revenue and expenses.
These are all needed before talking with a banker, in my opinion.