This implies that any investment in San Diego RE should be financially viable as an LTR.  

In your case, you mention down payment which to me implies that you are leveraging this property with a bank loan.

Some information I've read implies that we would be considered a partnership, which may have drawbacks to one sole proprietor, and one of us more of a part time helper.

A JV implies two entities coming together to enter in a deal.

As @Jeremy Taggart implies, if you have only lived there a year you will be stuck with Capital Gains (GC) tax which along with realtor fees would use a lot of your appreciation. 

My contract has an inspection contingency that states the following: The buyer accepts the property and its improvements in its present as is condition; with no warranties, expressed or implied by seller and/or realtors.

My contract has an inspection contingency that states the following: The buyer accepts the property and its improvements in its present as is condition; with no warranties, expressed or implied by seller and/or realtors.

If, "The house needs to be torn down" you may be implying that its worth is the land value, or less, as there's the cost of removal.Why will people show any different interest in the address after you, "get it under contract and then put it out to see if anyone would be interested...

This implies that every tenant turn over has risk. 

This implies a duplex to quad local to where you are going to live because you are required to reside in one of the units to use the VA loan.Do you want to live in Nashville or Cleveland?