Multiple Previous Visa Rejections (USA, Canada, Sweden) - Applying for Portugal Student Visa - Next Steps?

I have been admitted to a Master's program at Nova SBE in Portugal. However, I have previously been rejected for visas (both tourist and student) from the USA, Canada, and Sweden (study permit). Given my visa history, what are the key steps I should take to improve my chances of obtaining a Portuguese student visa? Would it be beneficial to have a lawyer review my application and provide guidance?

Question 2: Highlighting Specific Concerns and Portugal Visa Expertise

Title: Portuguese Student Visa Application - Expertise Needed with Previous Rejections

*Description: I'm seeking a lawyer with experience in Portuguese student visa applications, particularly for applicants with a history of visa rejections. I have been accepted to Nova SBE and have a history of rejections from the USA (tourist & student), Canada (tourist & student), and Sweden (study permit). What specific aspects of my application should be addressed considering my previous rejections? Do you specialize in Portuguese student visas and have experience handling similar cases?