In brief, what are the most important things I need to know about starting a starting a company in Brazil?

Limited liability Company (Sociedade Limitada/Ltda in Brazil) is the most common legal entity for foreigners starting in Brazil.
● Minimum Two Quotaholders (partners can be Foreigners, Brazilian, Individuals or Legal Organization)
● No minimum start-up capital (however with R$150k or R$600k capital you may apply for permanent visa)
● It takes 20-45 days, (from time properly prepared documents are ready)
● Company can be Formed Remotely (No need for Quotaholders/Partners to come to brazil)
● Company can be Administered Remotely (Establish Brazil Provide this Service)
● Company needs domestic Address (on the state of company formation, Establish Brazil Provide this Service)
● Partners need legal representative (Residence in Brazil, Establish Brazil Provide this Service)
● Partners have to name Administrator (administrator not necessarily a partner but has to be residence in Brazil, Establish Brazil Provide this Service)
Document preparation for Quotaholders is relatively simple. You usually need Passport copy and a POA for personally owned LTDA, and AOI, Company letter and a POA for legal organization/for LTDA owned by two or more legal organizations/companies.