This may not be what you wish to know, but about 4 or 5 years ago, I met a RE agent and here is her contact information:
Linda McCrerey
Coldwell Banker Dominical Realty
Sales & Marketing Associate
Playa Dominical, Costa Rica
1-877-309-9238 Toll Free
(506) 787-0223
(506) 787-0220 Business fax
linda@dominicalrealty.com
www.dominicalrealty.com
I have not been in touch since October 2005, so she may not be there now. Or maybe some one at that agency can give advice.