International Tax Setup for Online Platform

Request for international Taxes help I’m looking for an accountant that is savvy on Massachusetts taxes for my business that involves international transactions. I specifically need help to set up a template to do the accounting to help with taxes at the end of each year, since this is a brand new business and there’s no transactions yet. The business is about selling blueprints online, but then it becomes more complex by the target market: people in the United States and Europe that would like to invest into Dominican republic (of course anyone that lives inside the Dominican Republic can also purchase the blueprints to build there). The way that the system works for the business is also complex because I as an architect Do have my own blueprint available to sell. The blueprint of other architects sold would have to give the platform a commission of 30%. Other services that are included such as modification and professional calculation plan will give commission to the platform. The business also works as a "middleman" for the people that buy the blueprints. We connect them with builders (if they don’t have a builder)and that connection generate a commission for the platform as well. Eventually, the platform will connect people to empty lots that also will generate a commission for the platform. The platform will also connect people with surveyors for another source of commission if the client have a Lot without measurements. All these services even the construction part will be handle through the platform payments. And all these professionals are located in Dominican Republic Except an architect that lives In Canada. Another source of income is the fact that the platform will be having advertises. This advertises can be from the US and others from the Dominican Republic. And just like advertisers, we are planning to include partners that will pay us to advertise them in our platform. I need a system to let me organize all the paperwork also through the website and off website or I can let you recommend. What do you see feet for this kind of international platform? Experience in similar work is very much appreciated. It will be very helpful if the accountant also knows Spanish since this is a Bilingual platform.