Do I need a real estate attorney or divorce attorney?

A lot of different issues in your question(s). First and foremost, if you signed the notes to the loans, the only one that can take your name off...

My neighbor put up a fence between our two properties without consulting me.

The law is very clear in California that, absent an agreement to pay for 1/2 the fence, you are under no legal obligation to pay for any part of a...

I have run a real estate company with my father for 20 years. Recently my sister has made him give her a power of attorney.

If the power of attorney was legally done, then she stands in the shoes of the father. You can challenge the power of attorney if it was made...

Can I put over the fence parts of a tree limb that fell into my yard that the neighbor came over and cut into smaller sections?

Most states allow a property owner to remove the tree limbs that cross the property line onto their property. In this case, your neighbor did this...

Property line disputes are not uncommon - you are not the first neighbor to be confronted with this issue. And, unfortunately, different surveyors...