After that agreeing to add the guest to the lease and increase the rent if you feel the necessity. 

A good cordless drill is a necessity.

I don't have rentals in OH or MI where it gets below freezing so some of the items of necessity for you are non applicable to me.

The fact is women have been known to carry weapons in their ******s and this is a well documented necessity of a strip search.

Is the AC in the wall a necessity?

Also is sewer backup coverage a necessity?

However, if you are able to use the high cost of living to your advantage, as you can as a RE investor there and other ways as well, you can turn that frown upside down ... on the financial side, the trick for me was to arrange my financial affairs such that the higher the cost of living gets, the wealthier I get, but I will still be ok and wealthy if that doesn't happy ... then my happiness is only limited by the 405 freeway (joke, not really), which I only need to use if I want to leave the 6th happiest city, which would almost always be by choice and not necessity, again by design :) So, I guess my point is that you can engineer your lifestyle for maximum happiness no matter where you live, and that is a worthy metric to optimize around, but some places are definitely easier to do that than others due to the nice things you can't change IMO.How is Alaska treating you?

If they don't, tenants may not think of it as a necessity.

In real estate, money is always a necessity whether it be your own or somebody else's.

Banks have led a great many people to believe that the mortgage mess exists because too many loans were given at or around 100% LTV.

That is hogwash spread by banks because the...