I would phone the locksmith to get details on the situation and my hands on the invoice.

Still looking for first hand recommendations if anyone has them.

Seems like an opportunity but looking for first-hand advice.

If you can get a multi unit to house hack you could potentially do a short term rental of your space while you're out of the countrry if you really wanted to get creative but either way house hacking gives you the experience of being a real estate investor while being hands on and managing a renovation if you chose to do one and being a property manager. 

The guru is too busy.Guru teaching is generally all “hands off” video teaching.

I need some helps and advices on my next move.I'm thinking to sell my rental property to get $150,000 cash in hand, then look for a Duplex/Triplex in Garland, Grand Prairie, Irving, or Arlington to do a House Hacking method to put only 5% down.

If you find yourself with a lot of free time and you want to get your hands dirty then I'd advise looking for something that needs some work, typically you'll be able to get a deal like this a bit under market value.

Drove from LA to the Bay Area showed the place and handed the tenant over to OneRent.

Beyond the formal checklists: no evictions, 3-4x income to rent, prior landlord references, employment checks; I would also look at things like responsiveness to communication when we are setting showing, were they on time to showing, did they look me in the eye and shake my hand, did they show up to showing high?

Sure, there are a handful of people that are full time investors.