They are in the field sourcing opportunities, analyzing real deals, and making offers.

I now work in the field of tax benefits and cash flow for owners of commercial properties and residential rentals for purchases of $250K to over $2.5 Billion. 

Most successful real estate investors could have excelled in a number of other fields.

@Peter Mckernan This is a great well-rounded perspective, Real estate is one of those fields where no two deals or markets are exactly the same.

Or can you acquire another business in an adjacent field that increases profitability?

Any input, advice, critique, and recommendations for GC's in this field and area is welcome!

This entails building personal/working relationships with people successful in the field.

Offering definitive opinions about courses you haven't taken is like reviewing restaurants you've never eaten at.I think it's important to acknowledge that every land educator has contributed value to the field.

Hopefully, based on actual field measurements, past project data, and estimating software, your contractor can develop a detailed estimate that lays out the cost of labor and all materials for each phase of the project.

I'm in the process of having the Field Investigation done to determine my discount.