Hi Jonathan,Just off the cuff,One way to look at kitchen equipment is (new) (new-ish) (older-used) (very used with obsolete (or hard to get) parts but still in service<--possible reliability issues).The equipment setup dictates what can be cooked.

The occupancy and pricing change on a daily/weekly/monthly basis so whatever you see today will be obsolete soon enough.However, where DIY research comes in handy is amenities.

We removed the obsolete pool, and added a BBQ/Dog park to the list of amenities.

(Obsolete entertainment/over built for the amount of users just to markup homes) HOA(esque) Golf Courses closing down and going "Medium Density"<--Probably Higher Taxes collected by the city on the existing space (need new (under-performing) schools, added Police presence due to increased crime, etc...).Because after all Golf is a Business (like a Burger King), not a Real Estate Investment.Just my 2 cents. 

I do think tho that 5G and other wireless technologies are rendering this discussion obsolete.

The appraiser is saying that home is functionally obsolete and basically giving it no value.  

-How is that local government to work with for getting permits, keeping the within regulation, and what local codes will you need to abide by-Are there a lot of distressed or functionally obsolete homes in the area that you can conducted a flip-How is the supply and demand of remodeled homes / new builds in the market-Are material and/or labor costs in that market reasonable-Is the area experiencing growth.

Here the will is obsolete because the estate waited too long, so probate will be more complicated and expensive because the Court will treat this as a "intestate" estate and all potential heirs must be notified because they all have a claim.  

These new developments could make your property obsolete.

Did seller even disclose the obsolete electric service?