I might have to look at section 8 investments in the future.   

If the security deposit is not going to cover the the water bill or damages, try to scare him into covering the balance by hinting at sending him to collections and it will appear on any future credit pulls he may have done.

Just think of how this will affect DTI and ability to buy in the future. 

Have the tenant pay for repairs and maintenance with future rent increases by using a line of credit.

my plan is to study finance-related majors in the future, and then practice after having enough experience.

One other thing to look for in a future architect, is one that has a track record of working with developers AND knows the entitlement processes for the very specific type of development you are doing.

Validate zoning, potential special or use variance, future zoning map, neighboring zoning.

I am dwelling on how to scan future tenants and what to have in my lease agreement and more.

Do not think you can just start an investment company with 15k (that is reserves only on one property).Work for the next couple of years while you all learn and use your skills to help build the foundation of a future company and leverage your relationship with the alumni to see some of his properties and learn.

This is because I only buy nice properties which helps minimize my future repairs.