I didn't even know this group existed on DU. What a nice surprise.
I am a legal resident of France through marriage to a French citizen. My family origins are French, but my ancestors emigrated far too long ago to matter to the French. I tend to caution Americans about the culture shock. I say this, being absolutely madly in love with France and French culture.
What country are you eligible for dual citizenship with? 
On Edit: Croatia! I did some lurking and found the answer. Gosh, I would really think hard about this - Eastern Europe is nothing like Western Europe. If you have retirement income, I believe you can get legal residence anywhere in Western Europe as long as you don't need to touch any allocations. You might check it out. 
PM me with questions if you like.
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