Insulating without a thorough air seal will render your insulation pretty useless over time, as air washing diminishes its R-value (resistance to heat transfer).

I just purchased the property and the previous landlord had remedied the situation by replacing the bad drywall and using mold resistant paint.  

Good relations would be a plus but if the tenant is resisting you will need to force the issue.

I have clients where I change their payroll every month in order to customize it to their cash flow and the Online version resists me with the heat of a thousand suns when I want to change gross amounts or tax withholdings.  

I have seen some become self storage, some workout gyms, some garden centers, some antique stores etc.My clients tend to buy retail centers with internet resistant tenants for mix like doctor, nail salon, hair salon, karate school, gym, restaurant,etc.The sky isn't falling in retail.

My hope is, I have been clear enough with this post that someone can  please lead me down a path of least resistance and without having to get an attorney involved.

Third, they listen to alot of naysayers and always ask what if it goes wrongFourth, they are resistant to change.

I've been prodding some local friends in CT but they are resistant.

I'm not quite sure why you would need a lateral bracing along the perimeter of the basement unless it is to resist the wall from out-of-plane bending.. 3 steel beams in the basement slab or for the floor above it?

Couldn't resist the pun.