I am a citizen by state X, but I bought a house in state Y and then changed my citizenship from X to Z
<p>(all the instances of state here means a state in the general sense of a &quot;country&quot;, not in the federal state of say a &quot;<a href="https://en.wikipedia.org/wiki/List_of_U.S._states_by_date_of_admission_to_the_Union" rel="nofollow noreferrer">U.S.A. state</a>&quot;).</p>
<p>Let's assume that I am a citizen by state <strong>X</strong>, but I bought a house in state <strong>Y</strong> (with the passport type for identification being that of state X) and then at some point I have changed my citizenship from that of state X to that of state <strong>Z</strong>.</p>
<p>How does the change of citizenship and the use of a new passport type may be used against me, in state Y?</p>
<ul>
<li>Someone tries to use the fact that I no longer use a passport issued by state X to say that I no longer owe the property (due to racism)</li>
<li>Someone real estate official demanding ransom for changing all records from about passport type X to about passport type Z</li>
<li>etc.</li>
</ul>

<p>As a general principle: you don't have to do anything.</p>
<p>While I can't rule out that <em>some</em> country might have a law that removes title to property from citizens of a certain other country (perhaps as part of some economic sanctions), this isn't generally the case.</p>
<p>Generally, your property belongs to you, not &quot;you, a person who is only a citizen of X.&quot;</p>
<p>As for your examples...</p>
<blockquote>
<ul>
<li>Someone tries to use the fact that I no longer use a passport issued by state X to say that I no longer due owe the property (due to racism)</li>
</ul>
</blockquote>
<p>This isn't relevant.  Your passport has nothing to do with your property ownership.  My passport expired recently, but no one gets to come take my stuff.</p>
<blockquote>
<ul>
<li>Some real estate official demanding ransom for making changing all records from that of passport type X to those of passport type Z</li>
</ul>
</blockquote>
<p>Well...corrupt officials don't really need a legitimate excuse to extort bribes, but this seems like a particularly flimsy one for the same reasons as above.  They could probably also extort a ransom to process your property tax payment before the deadline, or some other completely made-up reason.</p>

real-estate