I'm not sure how much the hard start can help because the vibration/sound is present the entire time the system is on.From my understanding, the coolant line doesn't run though the master bedroom's external wall where the vibration is most prominent. 

I'm not sure whether BP allows people to post external links.

Larger complexes are a long term game, there will be less market influences with larger units, SFDs in mature neighborhoods may have external obsolescence, functionality issues that a large complex may not suffer over 40 years, you may have more stability but a larger complex is what it is too.  

The desire to keep up with the latest trends and acquire the latest gadgets and luxury items often leads individuals to overspend and take on debt, which ultimately restricts their financial freedom.Furthermore, external factors such as economic downturns, market fluctuations, and unexpected expenses can disrupt even the most carefully planned financial strategies.

Granite, I used to go out and hand pick my "discount" slab, literally.

Tx, AZ, and FL are my hand picked and trained people.

I created an internal and external automation software for agents/property managers to increase productivity as it significantly:1.

When analyzing potential performance of any real estate investment it's important to consider the external costs of ownership, perhaps most notably, at least in a more remote area, particularly as a absentee or out of state investor is Property Management Costs.

I suspect you hand pick your tenant and manage them.. we had to trust a smallish PM.. and in those days the rental pool was very small.

If you'd like, I'm happy to chat with your friend to potentially inquire about his services as I have a budget set up for 2024 towards external lead gen (Zillow, cold callers like your friend, mailers, etc.)