OMSA | Ostronoff, Malagó e Simão Advogados

What OMSA | Ostronoff, Malagó e Simão Advogados does

OMSA (Ostronoff, Malagó e Simão Advogados) is a São Paulo-based Brazilian law firm founded in 2023 that delivers integrated advisory and litigation legal services across 11 practice areas, with Real Estate Law as its anchor discipline and publicly recognized competitive positioning. The firm is led by four partners — Daniel Ostronoff, Fábio Machado Malagó, Beatriz Francis Simão, and Obede Franklin Moura e Silva Junior — supported by two associates and a consultant, operating from a single headquarters on Rua Iguatemi in São Paulo. Service lines span Negócios Imobiliários (Real Estate), Direito Urbanístico e Registral, Contencioso Estratégico, Direito Tributário, Direito Societário, M&A, Agronegócio, Contratos, Direito Administrativo, Planejamento Patrimonial e Sucessório, and Direito Ambiental, sold as a unified multi-disciplinary practice rather than distinct product lines.

The firm operates a traditional professional services business model, generating revenue through hourly rates, fixed fees, and retainers for both consultative and contentious matters, primarily serving corporate clients and high-net-worth individuals. Go-to-market is sales-led and relationship-driven, anchored by direct partner engagement and reinforced through content marketing (regular legal articles), industry recognition (Legal 500 Latin America rankings), and an organic social presence on LinkedIn and Instagram. There is no proprietary technology platform, no disclosed AI tooling, and no public-facing pricing or subscription offering; differentiation rests on partner expertise, integrated multi-practice delivery, and the brand credibility built through four consecutive years of Legal 500 recognition culminating in Reference Firm status for Real Estate Law in 2026. The firm is independently owned as a professional partnership, with no disclosed institutional, private equity, or venture capital backing.

Name

OMSA | Ostronoff, Malagó e Simão Advogados

Legal name

Ostronoff, Malagó e Simão Advogados

Website

https://omsd.com.br

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

OMSA is a São Paulo-based Brazilian law firm founded in 2023, led by four partners, delivering integrated advisory and litigation services across 11 practice areas with Real Estate Law as its anchor discipline, serving corporate clients and high-net-worth individuals.

Ownership category

akta.pro rank

Headquarters

HQ city

São Paulo

HQ country

Brazil

HQ region

Latin America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Legal Services Fees: Professional legal services billed through hourly rates, fixed fees for specific matters, or retainer arrangements. Services span both consultative (advisory) and contentious (litigation) work across multiple practice areas including real estate, corporate law, tax, and M&A.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

OMSA is a unified Brazilian law firm (professional partnership) providing comprehensive legal services across both advisory (consultivo) and litigation (contencioso) dimensions. Its service portfolio encompasses 11 distinct practice areas: Real Estate, Urban and Registral Law, Strategic Litigation, Tax Law, Corporate Law, M&A, Agribusiness, Contracts, Administrative Law, Estate Planning, and Environmental Law. Services are delivered through a team of partners, associates, and consultants to provide personalized, proactive, and efficient legal solutions.

Product overview

OMSA is a unified Brazilian law firm providing comprehensive legal services across both advisory and litigation dimensions. The firm operates as a single integrated legal practice rather than a platform-based model. Its service portfolio encompasses 11 distinct practice areas: Real Estate (Negócios Imobiliários), Urban and Registral Law, Strategic Litigation, Tax Law, Corporate Law, M&A, Agribusiness, Contracts, Administrative Law, Estate Planning, and Environmental Law. These services are delivered through a team of partners, associates, and consultants to provide personalized, proactive, and efficient legal solutions to clients.

Differentiator

Problem solved

Functional benefit

Products and services

• Real Estate Law (Negócios Imobiliários) Legal advisory and litigation services for real estate transactions, property development, and real estate investment matters.
• Urban and Registral Law (Direito Urbanístico e Registral) Urban planning law and land registry legal services covering zoning, land use regulations, and property registration matters.
• Strategic Litigation (Contencioso Estratégico) Civil and real estate strategic litigation services, including dispute resolution and court representation.
• Tax Law (Direito Tributário) Tax law advisory and litigation services covering federal, state, and municipal tax matters.
• Corporate Law (Direito Societário) Corporate law services including governance, structuring, and regulatory compliance for business entities.
• M&A — Mergers and Acquisitions (Fusões e Aquisições) Mergers and acquisitions legal services including due diligence, transaction structuring, and deal execution.
• Agribusiness (Agronegócio) Agribusiness legal services covering agricultural transactions, rural property, and agribusiness contracts.
• Contracts (Contratos) Contract drafting, negotiation, and advisory services for various commercial and civil arrangements.
• Administrative Law (Direito Administrativo) Administrative law services involving government regulatory matters, public tenders, and government contracts.
• Estate Planning (Planejamento Patrimonial e Sucessório) Estate planning and succession law services for wealth preservation and generational transfer.
• Environmental Law (Direito Ambiental) Environmental law advisory and litigation services for regulatory compliance and environmental permits.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Pinheiro Neto: Top-tier Brazilian law firm with deep real estate, corporate, and tax capabilities. Directly comparable as a Legal 500-ranked competitor in Brazilian Real Estate Law, competing for the same corporate clients OMSA targets.
• Demarest Advogados: Large São Paulo-based full-service firm with active real estate, tax, and M&A practices. Competes with OMSA across several of OMSA's 11 practice areas for mid-to-large corporate clients.
• TozziniFreire Advogados: Major Brazilian full-service law firm with strong real estate, corporate, and tax capabilities. Directly comparable as a Legal 500-ranked competitor in Brazilian Real Estate Law serving similar corporate clients.
• Mattos Filho: One of the largest full-service Brazilian law firms headquartered in São Paulo. Comparable as a direct competitor for high-end corporate and real estate legal mandates in Brazil, though at materially greater scale than OMSA.
• Cescon Barrieu: São Paulo-headquartered Brazilian law firm with a strong real estate and M&A practice. Competes with OMSA in real estate transactions and corporate matters for São Paulo-based clients.
• Veirano Advogados: Brazilian law firm with broad coverage across corporate, real estate, tax, and administrative law. Comparable as a Legal 500-ranked competitor in Brazilian Real Estate Law and across multiple OMSA practice areas.
• Machado Meyer: Major Brazilian full-service law firm with strong real estate, corporate, and M&A practices. Competes with OMSA for sophisticated transactional mandates in São Paulo, particularly in real estate law where both firms are ranked by Legal 500.

Direct peers

• Stocche Forbes: Boutique-leaning São Paulo firm widely regarded for high-end real estate and corporate work. Comparable to OMSA in practice mix (real estate, corporate, M&A) and Legal 500 recognition, and competes for similar mid-market real estate clients.
• BMA Advogados: Brazilian law firm with recognized real estate, agribusiness, and corporate practices. Comparable to OMSA in mid-tier positioning and overlapping practice areas, particularly agribusiness and real estate where both serve similar São Paulo clients.
• Lefosse Advogados: São Paulo-based Brazilian law firm with a recognized real estate and corporate practice. Comparable in size tier and Legal 500 Real Estate Law ranking, making it one of the closest direct competitors to OMSA in the boutique-to-mid segment.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/ostronoffmalagosimaoadvogados
• Instagraminstagram.com/omsadvogados

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about OMSA | Ostronoff, Malagó e Simão Advogados