Common problems are sewage backups, mold, infestations of rats, and other pests, faulty wiring, roof leaks and it violates the city’s building, health and fire code poses health and safety risk.

Large projects such as roofs, repipes, or HVAC only get about 50% - 75% of the actual cost.

Account for costs associated with capital expenditures such as the condition of the roof, foundation, and HVAC.

Reserve funds should handle a major cap x like a roof, plus money to pay the bills while the work is being done as a tenant likely won’t be paying during this time.

The 1 pieces are great because there aren't any seams to caulk/that can leak.

Now the minimum standards your basement has to hit for it to be able to count as assessed sqft not estimated is a height of 7 ft, a point of egress (bilco doors) and a window usually in the rear, It's one of those things where if your going to go through the process of digging out a basement you might as well go for it and dig it deeper then 7 and closer to 8 ft so you actually stand out compared to the competition.Now the other side of this coin which I would suggest is if you're willing to spend 40-50k on a basement dig, consider adding a 3rd story addition if your a 2 story (think master suite, walk in closet, master bath) or an addition off the back and add a roof deck if your a 3 story (either master suite or just additional bedroom).

No leaks from roof or in basement.

Some smart water monitors can track usage, send notifications to your phone, and you can pair them with a smart valve on the main to kill water to the whole house when they detect a leak.

Roofs, Balconies, Fencing, Planters etc. 

It can alarm you to any potential leaks.