Unfortunately, ownership of property in the U.S. by you actually makes it worse. Why? Because that is seen as a tie to the U.S. when you need to be showing ties outside of the U.S. to guarantee that you will go back home. As far as marrying in a state that recognizes same sex marriages, unfortunately, that will not work. This is because immigration law follows primarily federal law and the federal definition of marriage is that between a man and a woman. The only loophole I have been able to find is if one of the couple undergoes a sex-change operation and then the couple marry in a state that recognizes the new sex. Then it would satisfy the federal definition of marriage. Other than that, you would have to wait for a change in the law. I am truly sorry.
There are 5 ways to come to the U.S. to live permanently. They are through family, through employment, through asylum, through investment, or through the lottery.
For family, it must be immediate family such as U.S. Citizen spouse (opposite sex) or U.S. Citizen children over 21 in order to be able to come immediately. U.S. Citizen or Lawful Permanent Resident parents or U.S. Citizen siblings, or Lawful Permanent Resident spouses can also help you, but the wait for that is about 4 to 12 years or so.
Through employment, you would have to generally prove that you would not be taking away a job from a U.S. worker and the less experience and education you have, the harder that is to do.
Through asylum, you must prove that you will be persecuted, tortured or killed if you stay in your country and that this will happen to you because of your nationality, race, religion, political opinion, or membership in a particular social group, not because you would run the same risk as anyone else in your country to fall victim to a crime or bad economic conditions.
Through investment, you are looking at generally $1,000,000.00 for a residency, or $500,000.00 in an area designated as a high-employment area, plus in both cases the investment has to create 10 or more jobs for U.S. workers.
And through the lottery, it would be very difficult to win one of the 50,000 visas available per year and some countries do not qualify.
There are some visas available where you can stay temporarily and then later change to Lawful Permanent Residency if you qualify.
Some of the visas available through employment (if you have a job offer and you qualify) are:
H-1B for professional workers
H-2A for seasonal agricultural workers
H-2B for seasonal nonagricultural workers
H-3 for industrial trainees
Then there are the F-1 and M-1 for students and J-1 for exchange visitors.
And then there is the E-1 for treaty traders and E-2 for treaty investors (these types of visas are not available in all countries).
Here is a link to most of the available non-immigrant visas:
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