Analyzing Returns on Properties held for 20+ Years

[Austin Petrie]

Hey all,

So my grandfather started investing in real estate over 30 years ago and has not sold a single property. I'm currently trying to analyze how well each of these properties performs year to year to see if any are worth selling or in need of some tlc to get them to perform better. Since many of the properties have been held for 20+ years, they have appreciated greatly and are owned free and clear, are there any different metrics to consider beyond things like CCR, IRR, NPV, etc.? And is there any reason why any of those metrics I mentioned shouldn't be used for properties held this long?