I grew up near San Francisco and moved to Reno, NV to live and house hack. 

I live in Seaford, NY and have been searching for areas outside of LI to do my next deal.

Anyone can live anywhere they want if they have the money, and sometimes houses are bought and then rented out without much background checking on the people moving in.

I want to start investing in real estate in America in the near future, since I am not in America, I live in Europe, more precisely in Serbia, any advice and contact will mean a lot to me.

It would also be much easier to manage considering you are currently living in Arlington.

I live in San Diego and am trying to purchase my first investment property I have about 150K to put down but am struggling to find deals that meet my price point. 

If they're evaluating other properties and you have a good social presence that gives them peace of mind and a good sense that they'll have a nice living experience, that could be the tipping point if they're considering a similar property. 

This tenant currently lives in my property with a roommate and they are both equally responsible for the rent.

Good to know as I have a property coming on the market and we had one off market offer already all cash but at 10% list price discount (which we most likely will reject).Curious if you think the california fires will assist the market since many of those people need places to live for years and I am guessing some will flee california?

I doubt it was actually live.