I got second Turkish
citizenship by investment so I will touch on a few questions asked earlier.
1) Yes, you can change your name. (I haven't done that though)
2) Place of birth will be present in your passport in "City/Country" format
3) It took me a bit less than a year until I got the passport. Pretty typical. Not 3 months for sure. BTW, the "printing passport" step was about a month itself,
citizenship approved earlier
4) Military service for children maybe (there are some exceptions, don't know details) but not for yourself
5) Currency is collapsing indeed. Don't expect to rent out property for
decent returns, Turkish lira is plummeting and you are legally not allowed to index rent fast enough.
6) They didn't ask me for source of funds. I paid via
crypto broker actually, think "real estate company receiving large USD transfer from random guy from
Singapore". It was some time ago, things were changing.
A few more important remarks.
1) Very difficult to find reliable services. Real estate agents are trying to rack up prices, lawyers have no idea of laws, fixers take money and disappear. Rampant. Bad. Really bad. I basically can hardly do anything in the country as there are almost no good service providers.
2) Don't buy offplan properties, I know people without money, property, citizenship.
3) Real estate is not a good
investment. I'm a member of a small private chat of new naturalized Turkish citizens. There was 1 guy getting some proper returns and 50 of us who are not happy.
4) I must emphasize. REALLY BAD SERVICES. I had (upper tier, established) lawyers taking prepayment and ghosting me until I show up in person. I had numerous mistakes in all documents. Real estate agents sending an offer for a unit which I find online in two minutes but $20K cheaper. Et cetera. Very inconvenient.
5) Local banks are bad, even bank cards have problems outside of Turkey sometimes.
6) There is a government address registration system. You need to declare where you live. If you register a Turkish address you become a tax resident (yes, taxing worldwide income). If you don't then government offices and banks don't want to do anything for you.
Overall I'm not a fan. If you have a real need for another passport then sure go for it. It works. If it's "to have just in case", it was not a pleasant experience honestly.
Hope it helps, ready to answer your questions.