There is a state inspection process and sort of like the way a building permit works, you can track things back to who performed the work. 

Go to the municipality and see if a permit was pulled.

The scariest part of this is that we're very uncertain if permits will be approved by the town zoning board for heat.

What may be permitted in one city/state would be a costly violation in another city/state. 

It is currently zoned in such a way that no permits for any type of construction can be issued.   

It’s not that difficult or tricky to get permits.

It seems one room was added without permit can you still rent the home as 2 bedroom instead of one or do I have get approval from city to this or what should one do to rent home as 2 bedrooms?

My contractor did not pull the permits for construction like he said that he did, no to mention that I paid him for.

This list includes : lot survey, Temporary electric, site plan, engineer costs, water hookup, energy calculations, health department cost for septic/sewer, permit fees, and site clearing.

Purchaser further agrees that in the event Seller does not apply for permits necessary to construct the Property within 30 days or does not start to construct the Property within 90 days,  after the date the deposits are made, Purchaser agrees to such longer period of time required by Seller to take such actions.Is this type of language normal for multi-unit construction?