As an American with a Croatian wife, I had lots of questions.
The advice helped me make a decision.
I highly recommend Sara, her referrals to vetted professionals and her website! Peric, and my fiancé was given a signed contract with the homeowner, an OIB number, and just recently, she received her Green Card as well.
An English guide to Njuškalo (Croatia's Craigslist)
The ultimate goal was to find a home or apartment complex that was centrally located, affordable and met all of my fiancé's needs.
We then had Lucija's local assistance with the application process in Split and we could not have gone through the process without her help.
Expat in Croatia is by far the best, most convenient, easy to use source for any questions or information you may have.