If you put it out there asking for a 3-5 year lease with a small business or startup in your mind, but H&R Block or Supercuts comes along asking for a 10 year NNN (& it's corporate) and agrees to the rent amount you requested, there's no reason not to entertain that, you got better than what you were expecting (there's a reason NNN properties, or ones with a few NNN tenants sprinkled in that are national chains, often sell for lower cap rates), it's not like taxes or hair cuts are going obsolete any time soon. 

I have been using it for a while now and I can say for knowledge transformation, the small AI company already makes google/yahoo obsolete.

I agree that faxes should be made obsolete.

For the home I'm buying the parts and fixtures for now for two full baths completely gutted, which will be not upper middle or higher end for this market but high end with a incredible older (1938) home that's been updated with a very high end kitchen and more but two original and very obsolete baths upstairs, for the shower for instance, I'm quite sure a normal mixer and shower head, even if its a nice set, won't cut it.

I am now obsolete on BP.  

Either adding square footage to an existing functionally obsolete 2/1 or 3/1 or splitting off a double lot.

But I find the thought that it’s going to make most jobs obsolete incredulous.We have a robot vacuum, it does a pretty good job.

If you property is functionally obsolete like only has 1 bathroom, adding a bathroom would likely pencil out.  

Here's how it works in a nutshell according to IRS Pub 946.Consider depreciating rental property costs that may last > 1 year and aren’t eligible for De Minimus Safe Harbor (more on DMSH at a later time).You cannot depreciate the cost of land because land does not wear out, become obsolete, or get used up.

However I have seen rusted through cast iron as well.On the electrical side agree that any wiring that doesn't have vinyl outer sheath and a ground wire should be considered obsolete and past its service life.