We have a 2bed, 2bathroom apartment on phase 3, and we've just sorted out our non residents tax libility with a local solicitor. It wasn't due until the end of the year, but we just wanted to get it done and dusted while it suited us to attend to it).
Our bill was as follows:
Legal fees: 104,40 euros (inc IVA) (to calculate & submit forms)
Taxes each 120,81 euros (since both you and your partner each have to submit a tax return)
Total: 346.02 euros
Hope this helps!
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While we were at it we also sorted out our Spanish wills, (with the same solicitor). Note these have to be notarised - an additional expense.
We met our solicitor (who is english), in Jennifer Cunningham's Insurance office, on the Square, (beside the 525 Hotel), and were happy with the service provided.