Irrespective of the real estate firm involved. Primary dangers involved.
a) Solvency of the developer (presume you are buying new-build?)
b) Seek a Due Diligence Report (if not available, 'caveat emptor' - buyer beware!!!)
c) Don't leave a deposit. Only a reservation fee at most (circa GBP 500-1,000). This will give you time to change your mind or investigate further. Usual contract demands you confirm purchase and pay up to a 30% (non-refundable) deposit within 30 days of reservation fee.
d) Location? You don't say which town / village but suggest you avoid Alanya / Antalaya nowadays.
e) Rental Income. Virtually not yet a mature market for short-term rentals since there's no real low-cost air-fares during peak seasons. A few developers are offering 'rental guarantees' but suggest you ask to see 'Bank Guarantee' in support of such claims. Or again, the Due Diligence Report.
f) Also, plan or examine your exit strategy. The market as it stands, is not good for resales. Check the local real estate agency windows and see the low prices as compared against the new-build home you're contemplating.
g) Ensure you DON'T use the developers lawyer. Find an english speaking solicitor and make sure ALL documents are translated into english. (Might be able to help, dependent upon area.)
I know this may sound a bit negative but if you avoid the real issues, you'll probably face real
problems later. That's not to say it's not worth buying in Turkey, in my view it is, but make sure you don't follow a common British practice of leaving their 'brain-on-the-plane' - keep a clear and analytical head. Of course it's a lovely place and all the Brits that live there will doubtless sing its praises.
20+ years of investment experience.