Greg also represents parties in complex public-private development projects and projects involving significant governmental involvement. These projects include over 30 utility-scale and distributed generation energy generation facilities (conventional, wind, solar, biomass, fuel cell and other technologies), freight and passenger rail facilities, roads, water systems, seaport facilities, and public arenas, museums and entertainment venues. For example, Greg represented the project developers in creating the legal and financial structure for the Alameda Corridor Project, a US$2.5 billion rail infrastructure project in Los Angeles, and is representing the Academy Museum Foundation in the development of a new $400 Million museum in Los Angeles, the California High Speed Rail Authority in railroad related aspects of it high speed passenger rail project, and affiliates of Edison International in developing renewable energy projects throughout the United States.

In the natural resources field, Greg represents investors, developers and financiers of oil and gas, geothermal, water, and mining operations throughout the United States. Greg represented the US Department of Energy in the sale of the Elk Hills Oil Field in Kern County, California, the largest privatization ever conducted by the United States Government, represented international investors in acquiring, developing, financing and selling operating oil and gas fields and prospects, lenders and equity investors in financing oil and gas operations and in workouts of troubled loans and investments, major energy companies in the operation and sale of oil, gas and product pipelines, private equity and international investors in buying and financing mining operations involving industrial and precious minerals, and landowners and investors in acquiring water rights and developing water systems for projects. Representative clients include ExxonMobil, Occidental Petroleum, ARCO, Nations Petroleum, US Borax, US Silica, and a number of international and domestic financial institutions and private investors.