HomePage
logo_branco_assis

We are specialists
in Public Law.

Contact Us

Operating throughout Brazil.

Specialization

In-depth knowledge and experience in specific areas of law, such as public procurement and public law.

Agility

Fast and efficient responses to clients demands, ensuring prompt resolution of issues.

Areas of Practice

HomePage

Sanctions and Penalties

Our specialized team supports companies in disputes with the Public Administration, particularly in bidding processes, providing legal solutions for administrative or judicial sanctions and safeguarding legal commercial interests.
Improbidade Administrativa icon

Administrative Improbity

We offer defense and consultancy in administrative misconduct, focusing on demand prevention and case resolution, with continuous monitoring of applicable legislation and jurisprudence in public contracts.
Consultoria em Licitações icon

Public Administration Default

We help companies manage and recover payments owed by the Public Administration, offering effective collection strategies and ensuring compliance with legal and administrative processes.
Direito Ambiental e Regulatório icon

Consulting in Bidding and Contracts

Operating in the public market is our focus! From preparatory acts to the execution of the contracted objective or service, our professionals know how to guide your company to excellent results.
Licitações Internacionais icon

International Bidding

We advise companies seeking global expansion, integrating sustainability practices and aligning bidding strategies with corporate values to ensure authenticity and compliance in international markets.
Licitações Petrobrás icon

Petrobras Bidding

We provide detailed guidance on Petrobras bidding procedures, ensuring clients navigate the complex regulatory system successfully and maximize their chances of success.
Advogadas licitações

Who We Are

Assis & Siqueira is a law firm specializing in Public Law, known for providing excellent legal services in various areas, with a focus on public procurement.

With an objective and understandable approach to law, our procurement consultancy is customized to meet each client specific needs.

We prioritize the technical quality and expertise of our lawyers, ensuring high-standard legal support.

We are close to our clients daily, operating nationwide through strategic partners.

See More

Clients

Get to know some of our clients who rely on our strategic advisory and consultancy services to handle public procurement, public contracts, and public defaults issues.

Evaluations

 
 
 
  Excelente  
    
 Com base em 26 avaliações 
  
 
 
 
 
 
 
  
 
 
 
 Ruliano Bagnhuk 
 
 
 Ruliano Bagnhuk 
 
2023-10-19
 
 
  
Escritório ALTAMENTE ESPECIALIZADO. Advogadas competentes, com conhecimento técnico e preocupadas com a sua causa, o que, para mim, FAZ TODA A DIFERENÇA!
  
 
  
 
 
 
 Segundo Torres 
 
 
 Segundo Torres 
 
2023-10-18
 
 
  
Assis e Siqueira advogados , é um Escritório com profissionais atenciosos , competentes e proativos , ou seja , atendimento de excelência .
  
 
  
 
 
 
 ENGENHARIA TRINDADE 
 
 
 ENGENHARIA TRINDADE 
 
2023-10-18
 
 
  
O Melhor escritório de Advocacia especializado em Direito Público!
  
 
  
 
 
 
 Construtora Gamarsé Pretto 
 
 
 Construtora Gamarsé Pretto 
 
2023-01-11
 
 
  
Profissionais competentes e com muito domínio da legislação pertinente a contratos públicos. Excelente atendimento.
  
 
  
 
 
 
 Karina Pessanha 
 
 
 Karina Pessanha 
 
2023-01-10
 
 
  
Atendimento simplesmente impecável. Equipe super competente, recomendo!
  
 
  
 
 
 
 Moisés Serafim 
 
 
 Moisés Serafim 
 
2023-01-10
 
 
  
Assis e Siqueira Advogados, me deu uma assessoria de maneira satisfatória, demostrando compromisso e honrando os prazos estabelecidos nos contratos.
Muito grato
  
 
  
 
 
 
 Ireno Tecchio 
 
 
 Ireno Tecchio 
 
2022-06-22
 
 
  
Pessoal muito responsável, com atuação bem próximo ao Cliente.
Dedicação e comprometimento excelentes.
Super recomendados.

Where we are

To stay ahead of the changes and complexities of today's world, combined with the need for new technologies and the speed at which transformations occur, we operate throughout Brazil.

Rio Grande do Sul - Porto Alegre

Av. Carlos Gomes 111, 11º andar - Auxiliadora

(51) 99912‑2103

São Paulo - São Paulo

Av. das Nações Unidas 14.171, 15º andar - Marble Tower

(11) 3568-2033

Rio Grande do Norte - Natal

Rua Ipanguaçu 1123 - Tirol

Mapa do Brasil

Contact Us




    logo_branco_assis

    Mariana Glória de Assis
    Lawyer - OAB/RS nº 79.079
    Phone Number 51 99982.2817
    Email: mariana@assisesiqueira.adv.br

    Monique Siqueira da Silva
    Lawyer - OAB/RS 119.441
    Phone Number 51 99899.8289
    Email: monique@assisesiqueira.adv.br

    (51) 99912‑2103