If you can't figure it out, you might consider walking if the contract allows you point out the unpermitted work and say, "no deal."

Closet is currently used for storage.There is a coin-operated laundromat in walking distance that residents at this property as well as neighboring multi-family complexes use.

I could be wrong, I honestly think this is such a systemic change that it’s hard to predict the ripples, but I find it extraordinary hard to believe this doesn’t lead to a substantial reduction in commissions, I’m literally taking with a client in an hour, I like the guy, I suspect he may be a repeat customer and I’m not gonna take any chance I lose him over a few dollars, so I’ll negotiate with him, I suspect other agents will take the same approach, especially given the real risk buyers just walk and go unrepresented, whether that’s a good idea or not l, it will happen.

I also have an agent and contractors that walk properties for me as needed.

And I am walking it with the inspector and my GC Monday. 

On the other hand, if you have a signed contract on a property and you are present at the inspection and walk the property for 3 hours, that is considered material participation.  

I saw a house for 100k from a wholesaler (who went down to 97k after I walked.)  

So if you're looking to get into multifamily, I would try to identify the people in your area who owns hundreds of units and provide them value in the form of property management, joining their brokerage and bringing them commissions, walking properties for them, starting a meetup to increase their brand.

Seller wouldn't go lower on my offer price so I walked away on SFH #1. 

Before getting my license, I only worked with agents who agreed to charge for only the homes they showed me, no exclusive buyer broker, and I’ve walked on ones that tried to throw in an admin fee.