Need advice on how to build credit

[Griffin Stephens]

Hello Everybody,

I plan on buying my first rental property within the next 3 years, however, I have no lines of credit. I am 24 years old, currently attending college after completing my Army contract. I'm waiting to buy my first property until I'm attending my desired 4 year University after transferring from community college. I'd like to start building credit now while I'm waiting to see which university I'll get into. Does anyone have any suggestions on how to establish credit safely/efficiently?

Thanks for you time