Keabsahan akta perjanjian pengikatan jual beli yang didasari oleh surat kuasa menjual yang tidak dilegalisasi oleh Notaris (Studi Putusan Mahkamah Agung Nomor 1201 K/PDT/2016) = Validity of deed of agreement based on sale and purchase by power of attorney to sell that is not legalized by A Notary (Case Study of The Supreme Courts Decision Number 1201 K/PDT/2016).

Perjanjian pengikatan jual beli tidak dapat dilanjutkan ke dalam akta jual beli akibat uang jual beli tidak diserahkan oleh Notaris/Pejabat Pembuat Akta Tanah selaku perantara dalam jual beli tanah (Studi Putusan Mahkamah Agung Nomor 771 K/PID/2018) = Settled commitment of sale and purchase agreement (PPJB) cannot be executed to be sales and purchase deeds (AJB) due to sales and purchase money not be given by Notary/PPAT as a mediator of land sales and purchase case study Supreme Court Verdict Number 771 K/PID/2018).

Keabsahan perjanjian pengikatan jual beli berdasarkan akta kuasa menjual serta peran dan tanggung jawab notaris dalam pembuatan perjanjian pengikatan jual beli: studi putusan Mahkamah Agung Republik Indonesia Nomor 46 K/Pid/2017 = The validity of the sale and purchase binding agreement based on the deed of authorization to sell and the role and responsibility of notary in making the sale and purchase binding agreement: case study Supreme Court of RI Decision No. 46 K/Pid/2017

Tanggung Jawab Keperdataan dan Sanksi Hukum Terhadap Perbuatan Notaris yang Membuat Akta Perjanjian Pengikatan Jual Beli dan Kuasa Menjual Tanpa Sepengetahuan Pemilik Tanah (Studi Putusan Pengadilan Negeri Surabaya Nomor 963/Pdt.G/2016/PN.Sby) = Civil Liability and Legal Sanctions Against Acts of a Notary Who Makes a Deed Commitment of Sale and Purchase Agreement and Selling Authorization Without Knowledge of the Landowner (Study of District Court Decision Surabaya Number 963/Pdt.G/2016/ PN.Sby)

Tanggung jawab Notaris dalam pembuatan akta jual beli berdasarkan Perjanjian Pengikatan Jual Beli (PPJB) lunas yang hasil pembayarannya dikembalikan kepada pihak pembeli (Studi kasus Putusan Majelis Pengawas Pusat Notaris Nomor 04/B/MPPN/VII/2019) = The responsibility of a Notary Public in making sale and purchases deed based on the full paid-purchase binding agreement, in which the payments are returned to the purchaser (Study of The Notary Central Supervisory Board Decision No.04/B/MPPN/VII/2019.