The people that started this campaign all have a common love of their city and have come from various backgrounds.

What did you change that resulted in a successful campaign?

Been going hard the past 6 weeks with bandit sign campaigns and it's getting to that frustration point

You could drive for dollars (drive your market and look for vacant/abused properties), set up some bandit signs (we buy houses signs), or start a direct mail campaign. 

Now he is a land investor instead of a house flipper/wholesaler but the marketting campaign would be similar. 

I'm starting a direct mail campaign to pump up my leads for the last part of this year, but I've never done one before. 

Once again, we are in a market that you must talk direct with sellers and direct mail is your entry to that conversation.I have not started that campaign yet as my particular niche has kept me busy enough, but I do intend to.

Its the best thing to keep in touch with people, develop leads, and to tell people thanks.It has a back office CRM that allows you to automate campaigns (great for wholesaling) and send chocolates and/or gift cards along with nice cards to people you would like to thank.sendoutcards.com/why-sendoutcards/

We recently ordered a rather large dm campaign with postcardmania.

Instead of focusing energy on finding finders and navigating shaky situations I would suggest you invest your energy on learning the new laws and getting the proper documents and systems in place to execute marketing campaigns to find the investment dollars you need.