These sort of clauses were much more common 100 years ago before zoning was what it is today and private sellers used it as a mechanism to enforce some sort of development standards in an area. 

Commercial financing with Mechanics Savings Bank.

Mechanic liens don't survive a foreclosure but may take extra title work at the end to sell with warranty deed. 

Also, make sure the general mechanical room is separated and can be accessed as a common area (so don't have to access garden unit to get to meters and mechanicals). 

I would like to use a similar letter but not sure how to replicate this with a mass mailing and have the correct offer to auto-populate for each address.

I'd check for basement repairs needed since there's no photos....and the age of all big ticket items such as roof, windows, mechanicals, etc. 

If it's a complete gut job or tear down, add on etc. for sure, but normal cosmetic or mechanical upgrades without changing the "footprint" they don't want to do it. 

Cost seg is the mechanism by which we can produce greater depreciation in early years.You as a passive investor don't need to do anything to accelerate depreciation once you're in a deal.

even if you are "fully responsible", YOUR insurance won't pay 100% of the damages to someone else's property because your property insurance covers only your property. your liability policy would kick in if you are found "guilty" of damaging someone else's property (and will almost never cover all damages - this is not an auto accident) but their first line of defense is their own property insurance. all that aside notifying your carrier is a great first step as they will defend you if need be!

Value is being added to this deal in the form of a full gut rehab, everything top to bottom is being done to this deal, all new mechanicals and high-end cosmetics throughout with the end goal of being a higher-end rental What was the outcome?