What are your strategy to survive coming crash?

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Some say sell all the properties. Some say sell enough properties to pay off all debt, and keep the rest of the properties free and clear. Some say sell or cash-out refinance enough properties to have enough cash reserve to support minimum 5 years of recession and assuming 30% rent drop; in addition, keep the short term loans LTV below 65%, so the 65% LTV can survive a longer recession (such as 10 years recession) by able to refinance the same loan at 75% LTV to another 5 years (assuming a 32% house price drop in the first 5 years). What are your thoughts to survive the coming crash (may be in 2 to 7 years)?