Accounting / Tax Filing (48GB VRAM)

Question 1: Which model? They used to make specialty-related models, like a model just for knowledge about plant-life or cars etc. For tax filing, is there a tax knowledge model to use, or should we use a non-specialized model like qwen something?

Question 2: Obviously one of the points of failure would be having it tally numbers by looking at CSV files, but we can avoid that by using other software for that. The question is: what software should that be? Maybe 2 different softwares are needed: 1 that is used for fetching bank info for tracking income and expenses (the AI would be used to categorized the transactions), and a software for tax filing based on the values from the first software etc. Which two softwares would work? Self-hosted preferably, and obviously would need some way for the AI to interact with (api, or mcp).

Has anyone set something like this up?