@Marshall FairleyWhile I agree with @Ryan Blake that Myers, Networth & New Western get the MOST houses, I would recommend researching other investors experiences with these companies prior to pulling the trigger.  

Other than the general assumption that if the trade war spirals into chaos the economies overall would will an effect, possibly triggering an economic downturn.

When you are finding a property that matches your profile, the numbers are perfect, and you are ready to pull a trigger, what happens next?

I have never heard of a bank re-checking employment unless there’s an event that triggers it.

I've flipped before, and will be an active investor who is not afraid to "pull the trigger".

Because most of them will have due on sale clauses that if you transfer the loan it becomes due immediately, and a transfer to an LLC can trigger that.

In Pennsylvania, assigning contracts can trigger realty transfer taxes.

Shouldn’t be too bad.However, converting the Duplex to a four plex is a much bigger deal, I would seek out some more specific advice to your location before pulling the trigger.

Your offer to partner on a four unit interests me but I am probably not ready to pull a trigger on that now. 

Takes a lot of work and you have to be able to pull the trigger fast, like less than 24hours.Personally, I would not buy right now in the San Jose market based upon appreciation alone.