I'm not sure it would work in the way you're thinking in the mainland because lending/liquidity is difficult here in this current market.

Helocs must also be calculated in underwriting based on fully exhausted payment meaning even if you only use a portion during the next purchase they underwriter will hit you with the full payment for risk.Cash out on the other hand is a liquid reserve tax free and it only requires (1) mortgage/lien.

If you have liquid reserves - say $10k +, and IF the property is in good, not average, not fair, but GOOD condition, and the property is not in a “war zone” and not in a declining area, and the property is not in a city where it is or can be subject to rent control, then you might have negotiated the deal most investors strive for but seldom achieve. 

Listing agent was amazing when we were ready to liquidate.

Are you planning to flip and build up more liquidity?

Do  you have $20k liquid or invested on something?

I have about $60k in liquid assets, and hopefully, I'll be reaching the $100k mark by fall.

Syndications are extremely risky investments where one has no control over their investment, no ability to liquidate their investment, no control, no title, and no way of verifying the investment promoter's claims. 

The closes I could come to answering this question was "30 Year US Treasure Bonds".1) Low risk2) Decent return (Currently)3) Nobody involved besides me and the best economy in the world (The US).4) And no work other than monitoring the economic climate sporadically.Now, the bigger question is "How to get to $10m in liquidity?"

And they love to spray fire extinguishers and throw them and potentially break out windows.