If you are "doing business" in CA, the LLC should register in CA as either a resident LLC or a foreign LLC. 

People responded by explaining that residential mortgage lenders are looking for US-based customers, who have their residence, income and assets in the States.How do they view foreign debt?

Is it possible to do a 1031 exchange and use the proceeds to buy a house using hard money, then refinance into a long term loan?

So if the partnership would not be allowed to purchase the entity together and I were to buy it, if we were to force our way down this road, would be to set up a legal agreement beforehand, I would buy the property since a partnership can not, and then the exchange for  ($$ + assigned roles + etc), my partner receives 50% equity?  

Reach out via PM and we can exchange info, if you like.  

Let’s connect sometime and exchange ideas!

I now monitor the owner's equity, return on investment, and other factors and then proactively reach out when they are ripe for selling, exchanging, or adding doors.

Then you can do a 1031 exchange or sell it at a lower tax rate. 

And once you convert it into your primary residence it is no longer eligible for a 1031 exchange. 

While I don’t suggest that the smaller type investor purchase and utilize “exotic” vehicles like foreign asset protection trusts, family limited partnerships with outside controls, or Byzantine or convoluted maze of ownership entities, the more simple strategies of using Series LLCs, self directed retirement plans, and paying off their home mortgage to the extent of the Federal BK homestead exemptions can insure that a plaintiff attorney never even considers going after them.