The rent control regulation explicitly indicates that preserving the right to move family in is protected but only if the tenant received notice that the LL was preserving this right.  

That led many financial planners to reconsider the QPRT for California residents looking to both preserve their equity and avoid crippling estate taxes.There are ways to mitigate around paying multiple California Franchise taxes & still have both flexibility and protection - but nothing will save you from getting around the California FTB "doing business in" California definitions which are incredibly broad and vague so that paying the minimum $800 per year per LLC is inevitable. 

Preservation, aggressive growth, or something in between.

https://www.merriman.com/wealth-preservation/planning-on-moving-back-into-your-rental-in-the-future-read-this-first/

It is still pro rated based on qualified and non qualified use...Read this: https://www.merriman.com/wealth-preservation/planning-on-moving-back-into-your-rental-in-the-future-read-this-first/

I just go around and do it myself to preserve the property.

@Jessica Stevenson Springfield is home to SPAR which is the Historical Preservation.

The city website states the RT4 district is to promote, preserve and protect neighborhoods intended primarily for 2-family dwellings while also permitting a mixture of single-family dwellings and small multi-family dwellings of 3 or 4 unit.

I think another way is to deed it to another newly formed entity so you preserve your current lien. 

Sometimes it’s wiser to look at the big picture and take a short term loss in order to preserve your reputation long term.