Chanceous, I agree with much that has been said already. You clearly need to educate yourself, and focus, on your diet. You may want to check out John Berardi's Precision Nutrition website
Precision Nutrition, Mike Roussel's Naked Nutrition Guide
Fat Loss | Fat Loss Nutrition | Health and Diet Plans | Permanent Weight Loss or Schuler/Cosgrove's New Rules of Lifting
Amazon.com: New Rules of Lifting: Six Basic Moves for Maximum Muscle: Lou Schuler,Alwyn Cosgrove: Books. All would be good resources for you to figure out how to focus your dietary needs. Also, I would recommend keeping a nutrition log at
FitDay - Free Weight Loss and Diet Journal. It's very helpful, once you have a plan, to track your progress in that way on a day-to-day basis ... at least at the beginning while you're working things out.
I too am a corporate lawyer (albeit in-house) and understand some of your limitations. I do think though, with proper meal planning and execution, you can meet your dietary needs in an office setting. And you can do it without entirely relying on supps. It means buying a cooler or big insulated lunch bag and bringing a whole lot of food with you to the office. (I'm assuming you have a fridge in which you can store food.) It means spending some time each evening preparing and packing for the next day. It means carrying an extra bag with you ... I take public transit to work ... it can be done. It also means getting weird looks and comments from your colleagues. But that goes with the territory.
Of course, it all takes some discipline but you say you have that in spades so use it to your advantage. You can do it. I know. I have.