Your not correct under many different circumstances.First property tax is 1.1% (fairly safe) with 2% annual increase (prop 13).Next expenses include a lot more than property tax and interest. 

Mobile homes can sometimes be more expensive to insure, so it’s good to shop around for quotes.Resale Value: If you ever decide to sell the mobile home, understand that its value might not increase over time.

So, we can increase the rent as needed., B. 

Instead of buying the same type of property each year, the idea is to gradually increase the size or number of units in each deal.

As population grows, housing demand increases, driving rents higher.Rapid and Sustained Appreciation: Not all cities with growing populations appreciate rapidly.

But I can't see why Cleveland would increase in value based on negative population growth and, generally, being a bad place to live.   

As I posted recently on BP, some of the units that I've owned included heat and hot water in the condo fee, which increased the condo fee such their fee was in the $380 monthly range. 

The Birmingham market has been showing steady growth, with increasing demand for both single-family homes and multi-family properties.

The answer is clear: allowing full renovations without mandating sprinklers results in a far safer building than one that undergoes only superficial updates.Furthermore, requiring sprinklers in more buildings will likely increase costs even further.

I once had insurance go from below $1k/year to $6k a year in 3 years   Over $400/month increase of a single expense item (Gulf Shores, ~20 Years ago, we made 2 large claims in consecutive years due to hurricanes).