Insurance- coverage for new engineering, permitting, etc8.  

Before you sign anything, definitley pin down the timeline for permitting and building.

Another might be a residential tenant whose child comes home from college and discovers black mold in her bedroom closet.Ideally, Tenant Estoppel Letters will be sent to them after the inspection and financing contingencies have been cleared and within the last week before closing.

You also mentioned meters, do you have to separate meters, get approval from the city and pull permits?

Two colleges. 

In the next 5 years, we have 2 twin span international bridge projects, a new hospital, and the expansions of the university and college.

Quote from @Sherry McQuage: Make sure to check the zoning to make sure mobile homes are permitted there; check for any hazardous waste designation for the area; will you need to have the parcels surveyed out in order to sell the size you intend? 

I was out of college (just earned my degree in Culinary Arts) and was constantly running out of money.

The permits and architecture was done prior to start.).For most people the finances are the limitation to scale.  

Good points.I'd add square, level, plumb - license, insurance, bond - using permits to follow codepointing out problems the owner doesn't realize they have that are serious.