How do your rebrand a property?

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I know a lot of people may rebrand and rename a property such as an apartment building upon acquisition because it may have negative reviews or they just want a fresh new view etc but do I need to sign papers to change the name?

Let’s say hypothetically I bought an apartment building that was called Sunrise Apartments at Miami and then I wanted to rebrand it and change the name to Grand Living at Miami Beach how do I do this? 

I know that when I change the name I obviously create a new website and perhaps add the location on Google maps etc.