Minimize Mexico cap gains caused by currency changes

[Gord Stevenson]

I bought a condo in Mexico for vacation rental income.  It has done fine for the intended purpose.  However, even though the purchase price was negotiated in US dollars, my understanding is that capital gains for the purposes of calculating Mexican Capital Gains tax the cost basis is set in Mexican Pesos.  

The impact is that even if the property is sold for exactly the same price in USD, there is a huge capital gain in pesos because the USD has gone from around 10 pesos to over 19 in 2 years.  That may mean a capital gain of 90%!

Any good ideas on how to avoid or minimize Mexican Capital Gains tax on sale of the property?

Thanks!