There are cases where other income from utilities, laundry, a C-store, a restaurant, or something like that deserves to be included, so make sure not to punt before you understand additional income.Also, there are cases where the expenses will be higher, particularly in a park that has a large amenity package (like pools, clubhouses, sport courts, game rooms, etc), or a high degree of expense related to landscaping and maintenance.Once you discover you are in the ball park, then you can take the time to gather information, perform a market study, and underwrite the deal.

Starting from that advanced developmental basis I advance this discussion...Real estate is a team sport.  

While there I studied Civil Engineering, got involved in Engineers Without Borders, and picked up Rugby as my new favorite sport.

I'm a science teacher by day...sports coach by night...and want to become more financially sound in my "extra time" (LOL). 

Biggest house in the Neighborhood, sports car for my 15th birthday.When I was 18 my world as I knew it came crashing down my family filled bankruptcy and we lost everything.

I run an Amazon used book business and flip sports cards on the side.

Package management systems, smart home devices including temperature control and digital locks, gym and recreation sports facilities, outdoor kitchen and dining areas, and pet services were the most in-demand amenities listed in that survey.

As the saying goes, the RE business is a contact sport. 

I took out all the grass and added turf and rocks, a 2nd paver driveway, a custom sports court, pool upgrades, new exterior lighting and interior bedroom floors & chandelier.What was the outcome?

For example 20% of the people have 80% of the wealth, 20% of athletes make 80% of the money in sports and so on and so forth (you can search the Pareto Principle on YouTube and find a ton more examples of this principle).