The question is purely: how much does the tension-driven rent discount cost you cumulatively over the next 24 months, and does that exceed the AED 205K exit cost? If it doesn't — staying in is cheaper than walking away. The matrix below shows exactly where the line is.
Each cell shows the month the cumulative rent loss hits AED 205K. Green = stay in comfortably, amber = marginal, red = exit may have been cheaper. Use this to set your minimum rent target.
Month by month: the mortgage costs AED 17,547 regardless. Whatever rent you get offsets that. The gap is what comes out of your own pocket — and this tracks whether that total exceeds AED 205K within 24 months.
Every mortgage payment chips away at the loan balance — that's equity building regardless of what the market does. Adjust the tension depreciation and recovery assumptions to see your net position over time.