Hasan Çağlayan, one of the founding partners of Abcoo Law Firm, has been offering solution-oriented, commercial, and innovative legal consultancy for over 25 years to domestic and foreign clients in various sectors including real estate, construction, retail, industry, and finance, with expertise in Real Estate, Construction and Zoning Law, Tax Law, and Administrative Law.

Hasan Çağlayan actively manages legal processes related to the development, acquisition, and tax planning of large-scale, high-profile real estate projects. He provides legal consultancy for the development of major real estate and construction projects in Turkey, including revenue sharing and construction agreements in return for land share, and offers legal services in zoning planning and dispute resolution. He has extensive legal experience in development, acquisition, construction, leasing, and operation processes for numerous shopping mall projects in Turkey.

Additionally, he has advised foreign individuals and entities on real estate acquisition in Turkey and provided legal support for domestic investors regarding their investments in countries such as the UK, Germany, Italy, the Netherlands, Kuwait, Qatar, and Bahrain.

Hasan Çağlayan has also conducted seminars on zoning planning processes, dispute resolution, tax planning for real estate investments, and foreign real estate acquisition for prominent institutions like the Turkish Presidency Investment Office (formerly the Prime Ministry Investment Agency) and GYODER. Furthermore, as a representative of TÜSİAD, he has participated in and played an active role in the preparation of various regulations, including the Regulation on Immovable Property and Limited Real Rights Acquisition by Companies and Affiliates under Article 36 of Law No. 2644