The problem (as you have cited) is trying to understand what you need (you don't know what you don't know), where to get it, qualifying its source(s), and the validity and usefulness of all that.Pardon me if I've gone into this too much, but I meet many people with the same concerns that you are voicing and this is offered, as much as possible in direct response to your post.Please feel free to contact me if you have any comments or questions. 

Sometimes we see large amount of equity in a primary residence that can be borrowed against, even in 2nd position if it has a great rate that you don't want to lose.  

Switzerland does impose some restrictions on foreign and non-residents buying property but you can still buy and several members of my family actually own property there.

You know seeing people complaining about interest rates elsewhere has really made me think of exactly that thing, borrow as much as I can, and even get friends to borrow at the lower interest rates here (assuming they qualify) and then arbitrage my way to profits.

California prices are really unaffordable at the same time the state has consistently had outmigration of native residents for something like a decade and even negative population growth recently whereas Texas has grown substantially. 

What I take some issue with is the techniques that guru's use to up sell and so on .. and they do nothing to qualify if the person paying them if the program does not work they are now into debt to the eyeballs and so on but then again who are we to say at some point.. think of  Hewlet and Packard they went into 15k worth of debt to start HP in late 40s or early 50s and that was a ton of money then :)

Investment Info:Single-family residence fix & flip investment.

It is currently my primary residence and was a great house hack but I’m now considering moving out to live with my girlfriend nearby in her condo.

The building was vacant as we are remodeling the first floor and had just finished painting the 2nd and 3rd floors and were in the process of qualifying tenants to move in the following week. 

Once my Oregon Project is done end of this year Move base of operation and personal residence to my home in Vegas .