Plus, if you'd like to connect and talk marketing/sales happy to do coffee or something.Also, there are tons of Facebook groups for Chicago real estate.Lastly, just doing some 1:1 networking with lenders, agents, and architects is something we focus heavily on.

Ask around for architects who have build nearby, they know rooftops to dirt finishes.

All three units are long term rentals.Reach out if you need a good architect or contractor for your projects (anywhere in SoCal or NorCal). 

The expert you are looking for is called a Land Surveyor, they're going to want 5k-15k, if you want to make any money on your project you need to build a house so you also need an architect, they will want 10k-50k, if you're in a hillside zone you will also need a geologist, they're going to want 10k, you will also need a biologist, they're going to want 2k-5k.

It will likely be a web of contractors, engineers, and architects, but some those are ultimately leading to the developer. 

since as part of the project you are going to need an architect and civil engineer, I recommend starting with them and ask them who they have worked with for zoning.

Inspections are typically done by licensed professionals like structural engineers, architects, or certified building inspectors.

Perhaps take a look at:  https://www.loopnet.com/ and see which types of commercial lease listings interest you and from there take inventory of which brokerage and listing agents are prominently features in the space that interests you.

Leverage local experts: Connect with an architect or zoning attorney familiar with Scranton’s rules.

With no direction from an Engineer (or Architect) Contractors have no idea and will price out the scope of work they think is best even if it's not the best option.