Removing a cosigner (who is under title as joint tenant)

[Susan O.]

When I purchased my house I had a cosigner who the bank forced me to put on title of a property.  This was in 2017

The cosigner who's on title now still I wanted to remove

How can I do this just with aquitclaim?

Right now it's Me + mike as tenants in common and I just want to remove Mike from it.   Can this be done in California without triggering a reassessment of property tax or any other negatives?

Mike has not been a part of the purchase besides using his name.  He did not contribute money besides a small loan to this property 

[Matthew Paul]

Well just hope Mike is agreeable to that . He is a 1/2 owner of the house if he is on the deed .