Suppose you became immortal* or came by the ability to live for thousands of years due to some inexplicable/irrelevant event (you still appear to be human by all standards except aging), what would be the best way for an immortal to live in an american society while maintaining access to benefits of that society such as life, freedom and property?

This question just came to me as a "what happens after?..." type of scenario. feel free to answer either question below. The best answer should focus more on the idea of keeping control of their life, freedoms and property, how they go about it is up to you, the best answer should be somewhat realistic.

1.what might an immortal do to prevent suspicions (lack of gray hair/wrinkles 50 years later anyone?) and evade detection by the government? (dissection doesn't sound fun nor would being a lab rat for some medical/pharmaceutical corporation needless to say Joe Average would like to maintain his freedom)

-Or-

2.what might an immortal do through legal means to declare their status to the government and gain recognition as an immortal with the rights to the fruits of their labor? could they be declared a protected class of citizen?

*it should be noted that immortality is not equal to invincibility, but rather increased lifespan.

Suppose you became immortal* or came by the ability to live for thousands of years due to some inexplicable/irrelevant event (you still appear to be human by all standards except aging). What would be the best way for an immortal to live in an American society while maintaining access to benefits of that society such as life, freedom and property?

This question just came to me as a "What happens after?..." type of scenario. Feel free to answer either question below. The best answer should focus more on the idea of keeping control of their life, freedoms and property. How they go about it is up to you; the best answer should be somewhat realistic.

1. What might an immortal do to prevent suspicions (lack of gray hair/wrinkles 50 years later anyone) and evade detection by the government? (Dissection doesn't sound fun, nor would being a lab rat for some medical/pharmaceutical corporation, needless to say. Joe Average would like to maintain his freedom.)

-Or-

2. What might an immortal do through legal means to declare their status to the government and gain recognition as an immortal with the rights to the fruits of their labor? Could they be declared a protected class of citizen?

*It should be noted that immortality is not equal to invincibility, but rather increased lifespan.