I'm also into house hacking myself, and have spent a long time researching and coming up with cosmetic solutions to my own apartment, from painting, adding custom cabinetry, decorative molding to removable tile decals and wallpapers on Etsy.

It may have marks on it where the two halves of the hinge swing, but it shouldn't have notches or grooves.If the pin does have notches or grooves, you can try replacing the pin, if you can find a modern one of the same diameter. 

@David Oldenburg It's truly amazing how you were able to turn a pretty undesirable property to something so modern and expensive-looking without having to break the bank. 

I'd love feedback from anyone who has experience with this type of situation and any of the solutions above.

The only other motivation would be that your house is unique, in heavy demand, and nothing similar is available on MLS.A solution you might consider is the discount fixed fee broker.

He is violating your lease and your solution is to just change his lease to month to month?

Managing residents, investors, and contractors is not exactly a solution for high job satisfaction either. 

We figured we've a good 3 years before good schools becomes an issue so we're gearing up towards maybe purchasing or renting a great neighborhood down the line.All the best in coming up with your own solution to your lifestyle!

A good long-term solution might be sub-metering, with either passing the direct cost to each tenant or providing electricity up to X KWH per month, and tenant being billed for anything over that usage at $X per KWH.

American Modern was the best of many poor choices for me.