They do an inspection annually that can help as a forcing function to keep up on a property if you have long term tenants.

Is this my problem or should the landlord be expected to cover costs for fixing/replacing compromised items due to the fact that the problem resulted from apartment not functioning properly?

For your situation, it does sound more like an issue with the shower faucet, in which case, per code, you will need to change to a balancing, "anti scald" valve.

Quickbooks does not have a good platform for note servicing and accounting, but can be functional if you are accounting for only one or two notes.  

It is stated therein that the use of a functional or equivalency test to classify property (1) as inherently permanent when it is not itself physically attached to the land, or (2) as a structural component when it is not an integral part of (and therefore a permanent part of) a building, is no longer the criteria to be used to classify property.

After reading about a few landlords having screening problems, threats,   and recent anti-landlord gotchas and pitfalls that landlords are experiencing (in various states) when advertising for a tenant, I was wondering.....

For instance, I have a spot that had a very weird floorplan when I first bought it (which drove buyers away), but I could see that with some relatively minor work, the floorplan could easily be changed to be much more appealing, and much more functional...the property was turned from a 2 br 1 ba into a 3 br 3 ba, which transformed it from a cashflow negative property to a significant cashflower.With prices so high and deals so hard to find, value add strategies are often the way to go!

You will have remaining entitlement left over to purchase again in Oregon, but it will be limited as a function of the current entitlement.

Who will do quality control and make sure everything is functioning properly, furniture is not broken, grounds are maintained, etc?

It passed the septic inspection and another inspection showing that it is functioning great.