California though is so expensive that I want to try to create more streams of income with more properties.

There are online communities and local groups where you might find like-minded people facing similar challenges.Exploring additional income streams that align with your skills and interests could also be beneficial.

My plan is to self-manage so that I can maximize profits, continue to invest in others and build as many passive income streams as possible.

Once you have more than enough income stream from the US, taking some riskier gambles abroad may make sense.

They are typically interested in a furnished bedroom, have the income stream to guarantee rent payments and are fairly low-maintenance. 

Once funds transferred the joint venture immediately transformed into a bad movie!

Its as simple as ABC...Always Be Closing,, to quote Alec Baldwin in the outstanding movie, Glengarry Glen Ross.

My suspicion is the Millions of dollars sitting in TC accounts for 5-7 days are collecting interest and a new revenue stream for TC. 

:) They've seen too many horror movies.  

You might be better off purchasing multiple properties with the proceeds and give your self a greater potential for multiple streams of cash. later down the road you can do another 1031.