I have my real estate license, the 40 hour course and it was a ton of good info if you didn't have much of a base to begin with. I have been a landlord for years, have an architecture degree, and geek out to real estate as much as I can, so I didnt glean a ton of new info from the class but it was required anyway. I have found the continuing ed classes to be much more informative. It is definitely worth taking the pre-licensing course, there were a few in my class that were taking it for the knowledge and had little intention of actually practicing real estate. It takes a while to make a salary that would replace IT pay.
Yes, there is a residency requirement for most of the low down payment mortgages, and it is unwise to commit mortgage fraud!! However, if the down payment isnt a problem, I still recommend a 3 or 4 unit property to get your toes wet. Most banks will require 20-25% down. If you took out a personal loan for the down payment, you could pay back a good portion of it after closing. You should get security deposits and prorated rents back, which could be around 5 or 6 thousand dollars for most 4 unit properties, and even more if the landlord collected last months rent at move in. Feel free to PM me if you want me to take a look at some properties to figure out if thats the route you want to take.