If so then you refinance these and use the cash to supplement your 1031 purchases. 

The trade off with dumping most of our savings (and then sum) would obviously be the opportunity cost, but it makes us happy to see that we’re not paying an extra $4k/yr. in supplemental interest fees.What are your thoughts fellow investors?

Use rental income from quadplex purchase,existing duplex rented out both units, to supplement income of the househack later this year around winter timeframe.I intend to do the remaining 11 years I have left in the navy east coast if possible.

There is a follow-up or supplemental book titled The Book on Estimating Rehab Costs or some such, and it will be right up this alley, too.

Also consider that they could get a supplemental loan instead of full refinance, which would mitigate pre-payment penalties.

Does anyone know if CALSTRS supplemental account can be used as cash reserve when refying or buying a property?  

Assuming there is not a similar program to the BC Temporary Rental Supplement Program that you can leverage.Seems like the tenant wishes to ride rent free as long as they can and feels it will have no adverse affects on them once they are evicted in finding further housing.

While I'm not looking to replace my w-2, I would like to supplement it and have my properties there as a backup.

A friend of mine came from China to attend college, looked for a waiter's job in New York City to supplement his income, those that speak better English than him always got picked first.

My wife and I are just starting out investing in local real estate to supplement our income with rental income.