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	Montenegro Europe	Romania Europe	Bulgaria Europe	Spain Europe
Overview	Montenegro is a non-EU European country with structured residency routes, EU candidate status, and a growing role as a base for founders and remote workers in the region. Bordercase coordinates with licensed Montenegrin partners.	Romania is an EU member state with structured residency routes, accessible company formation, and competitive costs for founders and remote professionals. Bordercase coordinates with licensed Romanian partners.

Residency	Montenegrin residency routes: Temporary residence via employment Business / self-employment Real-estate ownership Family reunification Permanent residence typically after 5 years.	Romanian residency routes: Employment-based residence (including the Blue Card) Digital Nomad Visa - remote workers Business / investor routes Family reunification EU citizen-derivative routes	Bulgarian residency routes: Employment-based residence Business / self-employment routes Retirement / pensioner residency Family reunification EU citizen-derivative routes Permanent residence typically after 5 years.	Spanish residency routes: Non-Lucrative Visa - passive income, no employment in Spain Digital Nomad Visa - remote workers and self-employed (Startups Law) Self-Employed Visa Entrepreneur Visa EU citizen-derivative routes The Golden Visa has been phased out for real estate purchases.

Company setup	DOO (limited liability) is the standard structure. Formation is well-documented and reasonably fast. Tax and VAT registration follow.	SRL (limited liability) is the standard structure. Formation involves notary and trade registry. Microcompany tax regime may apply for small businesses with eligible activities.	OOD (LLC) and EOOD (single-shareholder LLC) are common structures. Formation is well-documented. Corporate tax is at a flat rate; VAT registration depends on activity.	SL (Sociedad Limitada) is the standard private company. Registration involves NIE / NIF, notary, mercantile registry, and tax registration. Spanish tax residency triggers worldwide income reporting; the Beckham Law (special tax regime) may apply to eligible relocated workers.

Banking	Personal banking for residents is accessible. Corporate banking depends on activity. Bordercase coordinates introductions where useful.	Personal and corporate banking for residents is broadly accessible. Bordercase coordinates introductions for non-standard cross-border structures.	Personal and corporate banking for residents is broadly accessible. Source-of-funds documentation matters for non-standard cases. Bordercase coordinates banking introductions.	Personal banking for residents is straightforward; corporate banking depends on activity and structure. Bordercase coordinates introductions for non-standard cases.

Family	Family inclusion on residency applications is supported. International schools are available in Podgorica and on the coast.	Family reunification is supported. International schools (English, French, German) are concentrated in Bucharest, Cluj, and Timișoara.	Family reunification is supported. Schools (public, private, English, German, French) are concentrated in Sofia, Plovdiv, and Varna.	Family reunification is supported on most residency routes after a qualifying period. Schools (public, private, international) are widely available; the public system is generally accessible to legal residents.

Risks	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 Romania: Tax residency triggers Microcompany regime eligibility Processing variations between counties Schengen entry / exit rules now apply	Risks Bordercase watches for in Bulgaria: Tax residency triggers VAT classification on cross-border services Processing variations between regions Euro adoption is in progress - operational planning needed	Risks Bordercase watches for in Spain: Tax residency triggers - 183 days + centre of interests Beckham Law (special regime) eligibility Autonomous-community tax variation Hacienda audits when planning is unclear Past Schengen overstays must be disclosed

Documents	Typical Montenegrin residency documents: Passport Criminal record certificate Proof of accommodation Basis for residence Health insurance Family certificates Apostilled and translated.	Typical Romanian residency documents: Passport Criminal record certificate Proof of address Basis for residence Health insurance Family certificates Apostilled and translated to Romanian.	Typical Bulgarian residency documents: Passport Criminal record certificate Proof of address Basis for residence (employment, business, etc.) Health insurance Family certificates Apostilled and translated to Bulgarian.	Typical Spanish residency documents: Passport NIE (foreigner identification number) Criminal record certificate with apostille Proof of income / assets Health insurance with full cover in Spain Accommodation evidence Marriage / birth certificates for family routes