Hi @Ashley_Stauffer,
Welcome to the Community! We’re glad you reached out.
I recommend that you start by creating a template project. It sounds like a good option for you would be to have onetemplate project with four sections - one for each phase. If the same person on your team will be doing the same work across all counties, then make sure to add assignees to the template. Then, copy the template for each large data collection project - that will give you 70 projects (one per county), and name the project using a convention such as [County Name, Project Name] (ex. San Francisco County, Data Collection). In order to keep the 70 projects organized and accessible, I also recommend that you create each project in the same Asana team and/or favorite each project so it appears in your sidebar to the left.
Also, your question reminds me of discussions we’ve had here about managing separate clients in Asana. For instance, we have people who use Asana to manage client work that often follows standardized workflows. I recommend that you visit these threads on the subject to explore how these use cases can apply to yours:
Please let us know if you have follow up questions!