Compare jurisdictions, side by side.

Montenegrin residency routes:

• Temporary residence via employment
• Business / self-employment
• Real-estate ownership
• Family reunification

Permanent residence typically after 5 years.

Mexican residency routes:

• Temporary resident visa - via investment, employment, or qualifying income
• Permanent resident visa - via qualifying assets, retirement income, or after 4 years of temporary residency
• Family unity routes - for spouse and dependents of permanent residents / citizens
• Student visa

Permanent residency unlocks indefinite stay with work authorisation.

Argentine residency routes:

• Rentista visa - passive income / pension
• Investor visa - qualifying investment in an Argentine business
• Worker visa - employer-sponsored
• Family routes - spouse, children, parents
• MERCOSUR fast-track for nationals of member states

Estonian residency routes:

• Start-up visa - for founders of qualifying start-ups
• Digital nomad visa - for eligible remote workers
• Work permit - employer-sponsored
• Family routes - spouse / dependants

Note: e-Residency is NOT a residence permit - it is a digital identity for managing an Estonian company remotely.

DOO (limited liability) is the standard structure. Formation is well-documented and reasonably fast. Tax and VAT registration follow.

SA de CV (Sociedad Anónima) and S de RL de CV are the standard private entity types. Formation involves a notary, RFC (tax registration), and IMSS where staff are involved. Mexican tax residency is triggered by primary home and centre of economic interests.

SA (Sociedad Anónima) and SRL (Sociedad de Responsabilidad Limitada) are the standard structures. CUIT, IGJ registration, and AFIP tax registration follow.

OÜ (private limited) is the standard structure, formed online via e-Residency or in person. Reporting obligations are real but proportionate; accounting partners are widely available.

Personal banking for residents is accessible. Corporate banking depends on activity. Bordercase coordinates introductions where useful.

Resident personal banking is broadly accessible; corporate banking depends on activity and structure. Source of funds and ownership clarity are central. Bordercase coordinates introductions for cross-border cases.

Residency unlocks personal banking. Forex controls and currency volatility are part of the landscape; multi-jurisdiction structuring is common.

Estonian banks have tightened KYC for non-resident e-residents; many international founders rely on EMIs (Wise, Revolut Business, Payoneer, etc.) for day-to-day banking. Local bank accounts typically require strong substance evidence.

Family inclusion on residency applications is supported. International schools are available in Podgorica and on the coast.

Family reunification is supported on most residency routes. International schools (English, German, French, Japanese) are widely available in major cities; bilingual public and private schools are common.

Family reunification is supported on most routes. Schools (public, private, English, German, French) are widely available in Buenos Aires.

Family relocation is supported on the work and start-up visa routes; schooling and healthcare access follow the main applicant's residency.

Risks Bordercase watches for in Montenegro:

• Tax residency triggers
• EU accession dynamics may change rules over time
• Processing variations between municipalities
• Schengen entry / exit considerations for travel planning

Risks Bordercase watches for in Mexico:

• Centre-of-economic-interests test for tax residency
• Real-estate restrictions in the "restricted zone" (50 km from coast, 100 km from borders) - fideicomiso or Mexican company structure needed
• Income thresholds for temporary / permanent routes change with minimum wage indexation
• Late-stage RFC and CURP registrations

Risks Bordercase watches for in Argentina:

• Currency / forex controls
• Tax residency triggers
• Document apostille + Spanish translation requirements

Common pitfalls Bordercase watches for:

• Confusing e-Residency with physical residency
• Banking-only setups without substance - likely flagged
• Crypto, gambling, and other regulated industries face additional friction
• Tax residence triggered by 183 days even without a residence permit

Typical Montenegrin residency documents:

• Passport
• Criminal record certificate
• Proof of accommodation
• Basis for residence
• Health insurance
• Family certificates

Apostilled and translated.

Typical Mexican documents:

• Passport
• Apostilled foreign documents (birth, marriage, criminal record)
• Proof of income or qualifying assets
• Photographs to specification
• Mexican consular application abroad for most routes

Typical Argentine documents:

• Passport
• Criminal record certificate (apostilled)
• Marriage / birth certificates for family
• Proof of income or investment
• Health insurance

For e-Residency:

• Passport
• Application form
• Biometric collection at the chosen Estonian embassy or pickup point

For physical residency:

• Passport
• Criminal record certificate
• Proof of income
• Accommodation evidence
• Health insurance
• Business plan (start-up visa)