Those relating to the management, leasing, rental, security deposit, or operation of the Property by the Agent, or any person in the Agent's company, or the performance or exercise of any of the duties, powers, or authorities granted to the Agent; This sub-section, and all rights to the Agent’s indemnification, shall be considered void if the Agent exemplifies any willful acts of gross negligence;Is this pretty standard language for a contract?

Those relating to the management, leasing, rental, security deposit, or operation of the Property by the Agent, or any person in the Agent's company, or the performance or exercise of any of the duties, powers, or authorities granted to the Agent; This sub-section, and all rights to the Agent’s indemnification, shall be considered void if the Agent exemplifies any willful acts of gross negligence;Is this pretty standard language for a contract?

So right out of the gate he's negligent in not using the proper hardware.

That's negligence. 

I trust you can appreciate the fact that our former landlord's negligence in this particular regard transforms a reasonably straightforward insulation project into an undertaking that requires significant attention and clean up on my part.

I was hoping to just deal with living in the current rental until I can save enough to look at buying my own property, but after some more fun with my landlords negligence involving our septic backing up into the basement, I’ve had enough and am moving. 

If they owned subject a long time it gets rid of capital gains for them and takes the worry about being sued for negligence if the units are a mess. 

Hopping from one big bank to the next has negligible benefit.

If the difference between building the ADU alone and the ADU/garage combo is negligible, then why shouldn't he have his garage.

Foreclosures are negligible relative to benign (or stressed periods).