Please take this for what it's worth. I'm not a CFP or CPA or anything else...
I think that, for you, buying might be a mistake for now. When you sell in four years, you'll probably see that you:
1. Didn't get to take advantage of the tax break. (No income = no tax = no tax break.)
2. Didn't build any real equity. (The first couple of years your payment goes almost completely toward the interest)
3. Borrowed money to pay that interest, and will now have to pay interest on the money you borrowed to pay against the interest on your condo. (phew!)
4. Could have been living in something larger without the maintenance hassles.
Even if the property values are rising in your area, the appreciation won't happen quickly enough for you to make any real profit when you sell in four years. Not when you consider that your selling costs will probably come to 7%.
Your family member is right, it is almost universally true that owning is better than renting. However, that maxim presumes that the buyer is working and relatively stable location-wise. You're neither.
Hope this helps. Any questions, drop me a line.
--Funkless
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