Alegra is one of the strongest payment platorms for invoicing and online payments in Mexico. Its strongest feature is its capabilities to communicate with SAT (mexicos IRS) in order to generate invoice matching (SAT checks that vendor actually recieved what client said they paid).

Quickbooks left mexico a few years ago because they didn't understand.. or didn't want to deal with the complexities of Mexicos SAT. Alegra has solved this and they have integration capabilities.

We currently have a seperate Alegra account, which is where we handle all our invoicing for Mexican clients, and would love to connect our agency GHL account to it.

Alegra has a pretty solid API. I think it'd be great for you guys to integrate and just add it a as a one-click connection under the large list of payment options.