This will likely have to go through probate, and/or foreclosure (it's not uncommon to see both happening simultaneously), which can take months, or even years. 

However, my lender tells me I cannot do that once I'm beyond 4 loans.Do you have the equity to have as many as SIX financed properties at the close of escrow of simultaneous refinances? 

You can invest using your VA loan while also using conventional products and DSCR loans simultaneously to maximize your portfolio.

I'm wanting to purchase a duplex and a single-family home simultaneously.

Trust me-you don't want to be in a position where you think you are saving money and simultaneously being taken advantage of by an expereinced agent on the other end of the transaction AND destroying a relationship with the agent you already have and trust. 

They are simultaneous.

Not to say you can't do both prospecting and acquisitions simultaneously. 

Such portability with simultaneous security of tools eliminates the need to stay at the rehab property.

I had this flip and a STR rehab going simultaneously.

Most people have not been taught how to achieve both simultaneously.