OK. Looked over an apartment building in a poor neighborhood. The owners were working to renovate it, but got shut down because they had no permits and the workers were cheap clowns. So, the owner is selling it and someone else will take up the renovation, hopefully they will have enough money to do so.
In any case, each unit (4 in total) had new water heaters, but their installation left much to be desired.
Can you spot all the defects? (this is Chicago, so your local requirements may vary.)