It seems like a real estate investing course that teaches you a formula of some kind might be helpful. Some criticism I have heard about investing classes is that you could get most, if not all of the info for free elsewhere, with some perseverance. However, if you don't know what you are really looking for, how will you know when you find it, right? There is a lot of great info available on this site, and also very helpful people. The BP podcast is also probably the most informative real estate podcast out there. I know I have personally picked up a lot of good info from BP. Also, there is a podcast called Lifestyles Unlimited that has a lot of good info, and they also offer a course that walks you through from starting out, to moving into apartment complexes. I have not personally taken the course, but I think courses like it would be the step by step guide that you may be looking for. Also, you get a mentor with them. Like I said though, the info is probably all available for free on biggerpockets.com, and instead of a mentor, ask the community. Its all on what you want, but there are classes out there if you are tired of the guessing game. Hope this helped!