This is subjective and you need input from a skilled property manager.Enhancements - Enhancements fall into three categories.Required due to market competition.

My goal is to start with a solid foundation, and I would prefer to hold this property for the long term, making enhancements as needed.This property is in an area with many homes built around 1900.

Enhanced Safety and Cleanliness: Implementing rigorous cleaning protocols, emphasizing hygiene, and adhering to local health guidelines will help build trust and attract guests.Embracing Technology also helps; automated booking systems, smart home technologies, and data analytics to for insights into guest preferences. 

Technological Integration: Property management software and resident portals are becoming increasingly common, streamlining operations and enhancing communication between residents and owners.6.

I used to be a big user of Mint app (www.mint.com) for personal financing and budgeting but they've been really slow at adding new features and product enhancements after they got acquired by Intuit a few yeas back so I started to look around and have slowly been transitioning my accounts from Mint over to Level Finance (https://levelmoney.com/). 

Eliminating tax enhances your roi quite a bit and you really haven't stretched yourself too much philosophically or financially to do so.  3. 

The rent isn't to make money, it's to negate the cost of ownership when I can't use it myself.I bought them as a way of enhancing my vacations, not to make money.  

After all purpose of money is to enhance life and whatever enhances your life the most is what you should do.

I personally hope to use the specialized marketing background to enhance my real estate sales career.

Taking high-res pictures then enhancing them for my marketing of vacant homes.2.