Understand the local permitting requirements, keep eyes on your property to avoid squatters, and make sure you have a great vacant insurance policy while you're renovating.

While I would like to add an ADU  I do not have the time for the permitting process.

Attend local builder associations or networking events, and focus on small contractors or businesses without in-house permit expertise.Highlight how you save time and ensure compliance—it’s a big value-add.

For our ADU (garage conversion), I am handling the design/engineering and then selecting a final contractor once its permitted and ready to go. 

This is who will approve or deny your plans when you apply for a permit.

Zoning Districts That Allow ADUsADUs are permitted in residential zoning districts and some mixed-use districts.

Developers will not be able to get these bonus building permits without providing such TDR credits.  

Does it require a highway occupancy permit if its on a state road, in my area it cost me around $1000 just to get the permitting and design for my driveway entrance.

I'd check local zoning ordinances to see what is permitted. 

Ensure you understand local regulations regarding permits; it’s usually a good idea for your associates to form an LLC for liability protection, but individuals can do renovations as long as they pull the necessary permits.