Even with a judgement.

There was a judgement foreclosure notice taped to the door that showed the owners name and the name of the bank.

Tell her plain and simple , heres the deal  ( what ever deal you want to make)  its a legal contract , If you dont like the deal , sorry , I will file for eviction and put it in the hands of a collection agency , Oh by the way 95% of landlords dont rent to someone who has been evicted , and a judgement drops your credit score .  

I am most interssted in protecting personal assets and if possible isolating any judgement against one property from the others as well.

Good attorneys have many cases available to them, and unless they have a really good reason to take on a case that requires extra discovery time/costs with a smaller chance of producing a viable settlement or judgement, they often will lean toward pursuing cases with people having properties in their personal names.

Therefore any judgement against this tenant is pretty much null and void.  

In CA, since most people now are getting a deficiency judgement waived, the redemption period isn't allowed.

also there are judgements against the property, how do i go about continuing to advance on this property and not get completely screwed if the "owner" has massive liens against the property that will put me upside down on this?

I got a judgement in my favor.

I do it all the time.There are laws surrounding what you can and can't say.You're not supposed to say you're going to help them, you can stop the foreclosure and a few other things.If you're planning to offer them cash plus pay off the final judgement order then that's absolutely fine.