So, with all of that as a backdrop, here's my review of the options

If the card is elegant, people will want to keep it.One strategy is to put your name and what you do on the front in really attractive, large design, with contact info at bottom and more brochure-type details on the back. 

join the wholesaler bandwagon til the bankruptcy fades away into the backdrop some more years?

The fixtures and finishes look elegant so maybe the project won't cost as much as we're thinking?

The wood work in the last picture is exceptional and adds an elegant touch at a price point where that level of craftsmanship might not be expected.

I have not yet figured out an elegant way to handle deposits on a group of tenants when one of the group leaves early and a new person comes in.

You have to elegantly manage all the parties involved by maintaining as much control of the situation as possible.

Isn't there a more elegant way to write a formula to get the TOTAL return, including appreciation, then the way I'm doing it here?

I think it def makes the space look more elegant.

What and where:From what I've learned so far and in considering a house a "liability" I find house hacking to be an elegant way to offset the liability of home ownership.