How do you complete your first commercial deal?

[Michael Glaspie]

I am a realtor and have a buyer looking for a multi-family apartment complex. I understand the underwriting procedure and know that even if I can provide the nominal NOI and market CAP rate the buyer needs to go through a much more detailed analysis. What is the recommended due diligence period of a commercial property? Also, what is a good 'rule of thumb' when it comes to an Earnest Money Deposit??