This is a quote from another thread where b0nkers posted the response he got from Guzman law firm to a similar question:
Thank you for your interest in our service. We would be more than happy to assist you.
Unfortunately, the Decree (631-11) which establishes the new regulations for the Immigration Law have been enforced from June 1st. This Decree was passed on October 19th, 2011 and at this moment, the Migration Department constantly changes its criteria of application of some rules set forth by Law 285-04 and its Regulations. It's better to wait until the Migration Department confirms how these new rules will be enforced. This might save you time, expenses and efforts as right now we are still on transition phase with an evident conflict between previous rules and new ones.
However, according with the information that you have provided, please find below the provisions that the Decree establishes (Arts. 82-83) for your case:
Due to you're canadian citizen, at this moment, you don't need a tourist visa. Therefore, the tourist card will be enough for you to stay legally in Dominican Republic. However, the Decree establishes that the maximum stay for any tourist person is sixty (60) days, and in order to complete all the requirements, you will need:
-Passport, with at least six months of validity;
-Air, sea or land tickets for the revenue and the return to your country;
-An address in the Dominican Republic;
-Proof of sufficient funds to cover your expenses during your stay in the Dominican Republic.
During your stay at the Dominican Republic, you have the right to apply for a extended stay for sixty (60) days more. In order to do this, you will need:
-Passport, with at least six months of validity, stating to count from the date of the extended stay;
-Air, sea or land tickets for the return to your country;
-An address in the Dominican Republic;
-Proof of sufficient funds to cover your expenses during your stay in the Dominican Republic;
-Medical certificate issued by a licensed physician with the appropriate exequatur;
-Forms and legal fees.
Finally, you can only apply once for the extended stay.
If you need further assistance, do not hesitate to contact us again.
Kind regards,