I have been learning from some folks living in El Salvador that it is possible to invest in real estate in El Salvador with only bitcoin! This largely avoids all the banking hassles which one might have trying to wire money from the USA to a "third world country".
A hack could be, get a mortgage in the US for a home. Sell the home. Then use the money to buy bitcoin which you use to purchase a home in El Salvador. Slowly pay off the loan in the USA. What do you think?
That being said, the banking situation in El Salvador is getting better! See the interview with Gladys from elsalvadorr11.com.