We only use pressure on the driveways and brick steps.

Commercial lenders should be pressured to do the same. 

So expenses keep mounting...It is also nice that this landlord's compassion is appreciated for what it is and it doesn't require some broad "cancel rent" move to have others take note.

Hey,So in our apartment we had gas supply that would provide us with hot water all day round.The owner decided to take out the gas supply and so he replaced the radiators and the boiler for the water with electric ones.After testing the water we found that there was only half the pressure ad before and the water would be luke warm at best after 3-4 minutes.

I'm not sure if there are any laws regarding it but if you put pressure on the condo board they might require or at least urge everyone to treat their units at the same time. 

I know for a fact they they are not "fool proof" because no investment is fool proof; they have their own unique challenges and pressures, just like any other asset class. 

Unless you are under pressure to buy, I would wait until the dust settles.

This will get some pressure off of you, and put the onus on the tenant. 

I would contact the bank and hopefully they'll call him and put pressure on him to finish the job else risk losing bank approval/recommendation.

They may also blow off the temperature relief valve due to internal faults or excess system pressure, from a closed loop, failed prv, etc.2.