Hahaha! That will take you a long way then @Autumn Alexander! This is an industry where creativity is a key component in all aspects of how you approach your business. Hopefully some of that spills over on me lol.
As far as tools, I am a Real Estate Investment Analyst by day, a Realtor for investors on the side, I'm working towards a CCIM certification, and I have a Masters in Real Estate Development. This combination gives me a unique blend of relatable skills and access to some great data/software. For instance, the CCIM program gives me access to ESRI which is an amazing demographics software that I use to track economic and population stats anywhere in the US. As a Realtor, I have access to the MLS which allows me to track what sells, what doesn't, what falls out of contract, etc. My degree gives me access to some of the top industry professionals at every level of the investment cycle. Finally, my job gives me access to repetition. It allows me to consistently refine my ability to analyze different types of commercial deals and understand how important every little assumption impacts value.
Honestly though, the most important tool that I use (other than my passion for the industry) is a spreadsheet. I build a spreadsheet for EVERYTHING. I'm a real dork when it comes to financial modeling and building custom spreadsheets on either Excel or Google Sheets. The key is to build a really dynamic spreadsheet that allows you to change your assumptions on the fly to see how those assumptions impact your deal. This allows you to put your assumptions through a stress-test based on different potential outcomes. I believe @Scott Trench said it best on the BP podcast when he was the guest: You've got to be able to win if the market rises, win if the market stabilizes, and win if the market declines (I'm sure I butchered that lol). A dynamic pro forma (financial model) will help you test your deal against all scenarios.
P.S. Always substantiate your assumptions with market data or hands-on knowledge from you or someone you know.