Plumbing is a different story and will vary with the plumbing set up and your skill level.

Having experience building a business will help with your real estate investing, as you'll have the communication and organizational skills required to be successful.If you’re looking to invest long distance, I definitely recommend building your core-4 team.

You need a big investment to change this - a college, medical center etc.

A skilled experienced person specializing in investment real estate will have no problem answering these, and very possibly already has some FAQ with much of this.

Every market is different, skills are different, location matters, proper due diligence matters and your individual lifestyle even matters.There are millionaires who live very humble lives and you would never know they were wealthy. 

I personally feel it's more bad than good, but others will have a different opinion and it probably depends on your market and skills as a manager.

They are covering cost of insurance, taxes, utilities and all medical expenses which are rapidly draining their available funds.

The properties I am looking at are on the MLS because I feel I do not yet have the skills needed for off market dealsThese numbers are even with a 25-30% down payment.  

My suggestion would be to read 1-2 books/articles in each space and then set up conversations with 1-2 investors in each space to truly understand what skill sets, etc... would be needed in each avenue.

During Covid I worked for a Medical Travel company so i would highly suggest with your knowledge to use that in your benefit.