Thank God you actually spoke with a good lawyer.I may also add that you could let the law student know that if they file a frivolous lawsuit or otherwise behave in an unethical manner, they may not pass the moral turpitude test required of the Bar Association. 

@Geoffrey Morales  Good question, everyone is in the same boat...I just finished repositioning / leasing all vacant units in the latest acquisition and stage 2 was to increase exciting rents. 

This is a legal question that I am speaking of and not a moral one as I indicated above that I would pay north of 1/2 as I would hold the tenant responsible for the late notice(In this specific case the tenant admitted to a delay in notifying the owner). 

We make good cashflow off of the other 2 units on property so morally I don't feel the need to increase rent on a senior citizen. 

you should have posted your question on FB, ask for moral support from your FB friends.

It's not moral to just say "open it back up because... the economy". 

Finding investor friendly lenders was a key part in boosting my portfolio growth. 

@Mario Morales I allow pets and have a pet waiver that I have tenants with pets sign when they move in.

If you want to give my mailbox money a boost [shameless plug to follow], just go to Pandora, Spotify, Apple Music, Amazon, or wherever the hell you listen to music and search for "the Rhythm Brewers" or "God, Guns, NASCAR", my biggest hit (such as it were 😅), give a listen or a purchase and you'll be contributing to my "mailbox money"

We can't answer your moral dilemma, that is for you to decide.