These hairline cracks can appear years later.There Definitely could be settling too, especially if alot of infill was used and there's no compaction spec, slab builds have an inclination for settling.

I'm not sure I'd be inclined to train my replacement especially if they felt they could learn everything I knew in a few hours. 

I would be inclined to see if there is any market for month to month mid-term to dip your feet in the water and see how you like the roommate situation, what kind of  response you get.

Appraisers are more inclined to use a sales approach in valuing a triplex than income approach and even if income approach is utilized or is part of the valuation process, the cap rate that's used will be specific to the neighborhood with higher cap rate utilized in lower tier neighborhoods. 

., you will get various answers on how much per room etc.I don't think that buying used means buying crap or how @Avery Carl once told me, "Grandmas white wicker furniture.".If you have the time and inclination, hitting up Craigslist, FB marketplace and OfferUP among other places will yield a treasure trove of deals.You can get top quality USA made furniture for pennies on the dollar.

Quote from @Edward Collins: @Sean O'KeefeI'd love to take a look at your Template Log Book if you're still inclined to share.I’m still inclined and happy to share - sent! 

I'd also be in favor of doing what others have mentioned and having an initial lease term, say even 6 months, but that she has options to renew at "market rental rates" or if you feel more inclined you can predetermine what rent she can have options at, but it is a bit of a hybrid. 

If its a building I know I will be selling soon, I will be more inclined to follow the lease rent increase provision between year 1 and 2. 

If all those infrastructure components are new then I would be more inclined to look at a renovated home that is very old.

Curious — are you more inclined to sell outright, or do you think there’s still a way to pivot the property and hold?