Recommendations for real estate underwriting education?
I have a fairly basic understanding of how to review and analyze commercial real estate deals and would really like to expand my knowledge here - especially through the use of Excel. What method of instruction and/or which sources would you recommend? 

Any feedback on the following? 
- CCIM
- Wall Street Oasis 
- Breaking Into Wall Street 
- Wall Street Prep 
- Google/YouTube? 

Thank you in advance! 
[{"id": "e4o62ta", "text": "CCIM for sure. ", "replies": [], "depth": 1}, {"id": "e4oaih6", "text": "Start with all the free resources. Particularly youtube. Use google to see if you can find a free discounted cash flow model and then build your own based off that. If you feel like you havent learned anything at the point, then look into something that costs $$$", "replies": [{"id": "e4p11m9", "text": "I agree, I would suggest start with free resources.  I've been an underwriter for over 10 years and have never taken a CCIM class.  That is not to say that they are valuable and useful, but just that its not necessary for learning the craft.", "replies": [], "depth": 2}], "depth": 1}, {"id": "e4ot2dq", "text": "CCIM 100%. There are a ton of classes aside from the main courses designed for designation, one of which is on discounted cash flow models using excel. Those smaller classes are only a couple hundred bucks each, and they're webinar instructor led classes thay are usually a couple hours a day for a couple days. ", "replies": [], "depth": 1}, {"id": "e4plcxs", "text": "CCIM is a lot of money and I dont recommend for those whose companies aren't sponsoring. The rest are good resources that also cost less, but still have to pay for them.\n\nAdventuresincre is the best free resource I have found out there. Spencer Burton is great at explaining models in  his videos with all his models on his site.\n\n&amp;#x200B;\n\nGetrefm also has great training models with videos but they also charge money.\n\n&amp;#x200B;\n\n&amp;#x200B;", "replies": [], "depth": 1}, {"id": "e4psy1m", "text": "I would recommend CCIM but as other's have said it's kinda expensive.  I'd start with some free resources first. ", "replies": [], "depth": 1}]