Immigrating to Estonia!

Greetings!(Sorry if this the wrong forum)

I am soon immigrating to what I hope to be a new country I could call home. I have been living abroad from Sweden where I am from for almost two years in Latvia.

I was and still am looking for a permanent home and I do like Latvia, however. I always found myself drawn what I would call the "Suburb of civilization".(You can tell me I am wrong on that if you feel like it)

I wanted to ask the followings before I went though:

1. What do you request that learn before I go?

2. What do you expect of me as an immigrant?

3. When I look for apartments in Tallinn, I found them quite cheap, is there a drawback such as heat/water/electricity paid separately?

4. Any areas to avoid? (In Tallinn and in country)

5. What would it take to become a member of your country if it can even happen?

Sincerely, Jon!