But the difficulty is that they need to be built one off each from a different approach to be effective - Finance, Sales realization and expense, operation Expense, NOI, ROI, and ROE, and appreciation.I'm going to sound like some kind of mountain dwelling mystical sensei but if you focus on the destination you can see the various paths that get you there. 

you can use other calculations as well like ROE(return on equity) as a metric to give you more clarity or ROI

However now that we're in escrow the title company will not insure until the wild deed is expunged; meaning they want it erased from title as if it never happened even though it has been overturned and title is in good standing.

When I owned 10 single family, cash flowing an average of $450.00 each door, my ROE or Return on Equity was barely over 3%.

Want to know what other experienced people in real estate investing like you think.To get an estimate on that you would need to run a return on equity (ROE) calculation which is why I asked how much equity you have if you were to sell now.

My agent submitted an offer for a ROE.

There are also efforts to reduce the vote needed to overturn prop 13 (from current 66% down to 55%).

I was unable to overturn the low appraiser's appraisal.

If it doesn’t get overturned, I would take the housing authority to court.   

That alone would prevent you from getting title insurance.Also, in most places in California, owners can redeem the property up until the end of day before the auction occurs.Also, in California, there is a one-year statute of limitations for an owner to bring an action to overturn a tax sale.