Quote from @Nate Sanow: Yes I own two that are near 100 years old and I will tell you they are a pain in the you know what compared to all of my post WW2 properties especially post 1980… layouts are better in the last 50 years and energy efficiency is better and I can keep going… HOWEVER to reply to the other aspect of your question, I’ve found appreciation is better with older properties in areas of the path of progress.

They can just be too hard to lease.On the other hand, if the area is doing well economically and its occupancy is currently strong (I certainly want a vacant or near vacant property) I think it's worth considering at least.

I spent my twenties in the area and have seen the economic growth.

I won’t try to tell you what to do other than if there’s certain properties that just consume way more energy you might consider 1031ing them into slightly larger properties where you could get better economies of scale for your time and expenses.

A person who has spent his 2000 to 4000 minimum CPA practice hours doing foreign currency conversions at Deloitte for a Belgian energy company may not know the first thing about real estate or anything else.

This could include new appliances, energy-efficient windows, or custom finishes.Clean and Declutter: Ensure the property is clean and free of clutter.

The metrics I'm primarily focused on are: rent appreciation rate, property appreciation rate, economic growth rate, unemployment rate on the macro level.

The economics of that area aren't real great.. mostly older people and not a lot of opportunity for young people with ambition. 

It's going to offer Strong economic growth, Appreciation (especially in DFW), Tax advantages (no state income tax), and a Growing population, including infrastructure and amenities. 

. , I didn't want it to loose that tenant so simply i helped him to get " energy assistance" this is a program to help people out if they can't afford heating bills , I don't know if it is in your state so you my want to check this out.