Any tips or pointers to apply to make myself more "prepared" to be an investor would be great!

I’d love some general tips on how best to navigate my situation. 

Tips on a book or personal testimony are greatly appreciated.. 

Looking for good tips or resources to learn more about decent markets to invest in. 1.

@Melanie Dupuis thanks for the tip! 

RV life sites have tips on managing mail and your domicile from a distance.

Thanks for the tip.

I came home to a broken dishwasher that he had let overflow over and over in the kitchen while I was gone because he didn't really register the water and just mopped it up without telling me.  

Any tips it will be grateful, thank you!

Regarding renting a room, the biggest thing is to be aware of the landlord-tenant law in Portland - it is very restrictive and considered unfriendly to landlords (whether you are renting a room or renting the whole place), Tip, for rent cost, look on platforms like CL, Airbnb, hotpads.com, etc.