This is a link to information on marriage in the Philippines. It seems quite thorough: https://rapidvisa.com/definitive-guide-to-getting-married-in-the-philippines/
Rapid Visa also offers to assist you in obtaining U.S. visas to bring your fiance or wife to the U.S. In our experience the process is straightforward with good information available from the Citizenship and Immigration Service (USCIS) and online. You can do it yourself. For those who need help Rapid Visa is likely a better approach than hiring a lawyer.