I am 19 years old, a college student and new to the real estate game. 

I see little to no International travel happening.

Also, the state of formation is likely where internal disputes would be brought among LLC members, so if you and a partner live in CA, you probably want to arbitrate in CA if the two of you had a disagreement.

I have a Duplex in a college town that's classified as commercial student housing.

The great thing about SLO is that the vacancy rate is extremely low, typically about 2-3% due to the college.

My kids are in college and high school so as safety needed the funds and did not want tolose that2.

I have successfully turned a profit on my first owner finance in college but I recently closed on the selling of that property. 

My parents are telling me I need college to get a job to support it, so is their a certain college major that will help me with this ?

I've considered the following options but I would love to hear if there are more options I didn't think of:Install a formal exterior door in lieu/addition to the storm door (safest option, costs time and money)Leave it as is and rely on the internal-exterior door as a good enough protection (riskiest option, however the neighborhood in general is very safe)Leave it as is and don't market the sunroom as livable space.

We are also a college town.