Anybody know about relocating in Spain or Costa Rica?

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I am considering two moves

Costa Rica

1) The first is a move to Costa Rica around the Arenal area and opening an International Writer's Workshop. (I have 4 people who want to help me and all the contacts I need, but no start up cash.)

2) I am a lesbian with a partner hoping to start this business with two other lesbians. I know that Costa Rica isn't a gay friendly nation, but is it the kind of nation that leaves people generally to themselves?

3) If I buy property there, can I become a resident? Is it hard to live their without citizenship?

Spain

I am interested in Spain because I speak Spanish fairly well, because I love the country, because they have gay marriage, and because they have an extremely progressive government right now.

1) If I get a job in Spain, can my partner live with me?
2) How does residency happen, if ever?
3) Citizenship. Is there a remote possibility?