In addition to the different tracks @Chris Seveney descrubed, there is also good information on creative financing and seller financing (including what to avoid).

Any additional will be refunded a few weeks after the auction. 

Additionally, are there any other factors I should be considering when purchasing a duplex or triplex?

After that's under control, focus on increasing income through additional work at your current job, taking on a side hustle, or finding ways to increase income on your existing rental.At the same time, educate yourself.

An example of that is tenant must pay for additional electric over flat fee / flat limit since now there is 2 occupants in the home instead of originally one.

Additionally, the beach is still within reach...just a short 1 hour flight or 6 hour drive.  

The intent of getting a sales agent license is to educate myself in Real Estate and create some additional income.If your relationship is such that you need to hide your license, you’d be better off with a different working relationship.  

I think what @Garrett Brown is getting at is using this in addition to other methods.

YouTube is also a fantastic resource—it's free and you can learn at your own pace, which is a huge benefit.

This is a significant potential benefit that can impact everything from security deposits to rent controls to eviction procedures.