Buying property in a developing country like Vietnam sometimes requires that you hire a credible solicitor, at least for large and/or commercial transactions.
Compared to real estate agents, solicitors have a deeper knowledge when it comes to ownership regulations and they can assist you in the conveyancing process, like:
Checking the title - confirming that there are no hidden liens, encumbrances or mortgages attached to the property
Do a scrutiny check of the seller and confirm that he or she is actually owning the property, the problems are usually due to problems at the seller’s side, not the government
Handle communications with the seller’s side
Drafting and review the contracts together with you