Identify subcontractors or other professionals like a surveyor, engineers (structural, geotech), etc
Walk you through the permit application and give you options for getting permit ready and submitting permits.
I'm no construction finance expert, but I can offer what I've learned and my recommendations on what to do before you start to help manage risk. 

    For example, I recommend opening a credit account with Parr Lumber which will save a great deal of time and money as compared to shopping as a regular retail customer there or at Home Depot.

Discuss constructability factors and ways to keep the design simple and easy to DIY with low and semi-skilled labor.
I can (gently) challenge assumptions about how buildings work or what is possible