All good stuff above, but here’s my suggestion- Try calculating your ROE (return on equity) for each scenario. 

They are more likely to get overturned and pierced in a court of law generally speaking.     

I would imagine there is a way to remove someone "in abstencia", you can get a divorce, overturn custody, and adopt even without all parties involved if you can prove that a valid attempt was made so I would imagine there may be a way to clear title as well maybe not within 12 days but we'll see.

Return on equity (ROE) is not ROI.

So if you can borrow at 5% but get 10% returns, the more you can borrow at 5% the higher your ROE is and the more money you make.

Since the sale could be overturned apparently, no one will likely pay you any premium until the one year is up.

IT also matters if the ROE agent is getting both sides of the commission.

Most likely, you'll want to sell the two San Diego SFRs if you're measuring progress by your ROE.- I would advocate, given your goals and like you said, for moving into multi-families. 

The independent variable you should be focused on is your required ROE for a property to work.

Manhattan Beach just overturned their ban on strs & Hermosa Beach is pretty clear on their policies.