It sounds like you have a great plan, renting to friends and banking the extra $.  

On the other hand, that extra "dry powder" in hand would come in handy so likely higher reward too.

Pay down extra on the principle of my first property.2.

These extra fees reward bad behavior IMO.

Currently I am mid way through with my classes to obtain an Illinois real estate license, and my expectation is to add extra capital to my investment fund by working as a broker part time outside my regular job. 

Can hit the 1% rule and be all in for under $150k with ~$15k extra forced equity (or more if you are skilled at acquisitions and repairs).

@Scott SchumacherThese are 1 owner searches, although we do go the extra mile if we need to go back a few.  

I have taken the 40H class and looking to sign up for the test for the purpose of; making extra $ in RE --- getting closer to my market --- overall improvement of investing.  

If there is extra I have a shed to do .

I figure the extra intel helps MY clients so I'm all ears.