The article sheds light on the regulations of Roman law appearing Property Law, Law of Obligations) in the works of Pavle Seroglić, the first reviewer of Serbian Civil Code (1844) (The Review of the Civil Code for the Serbian Principality, Promulgated on 25 March 1844 (Pregled Zakonika građanskog za Knjažestvo srbsko, 25. marta 1844. obnarodovanog, published in Bačka vila 4/1845, 114-187). Counterresponse to Response of Mister Miloš Svetic in the Third Linguistic Counterattack (Replika na odgovor gospodina Miloša Svetića u Utuku III Jezikoslovnome, Novi Sad 1847) and Civil Law in Croatian-Slavonian and Serbian-Banat Military Border (Gradansko parvo uc.k. Hrvatsko-slavonskoj i Srpsko-banatskoj Vojničkoj granici, Šeroglic's undated and unpublished commentary of Austrian General Civil Code, kept in the archival materials of Sremski Karlovci Grammar School in the Archives of Serbian Academy of Sciences and Arts in that town. The provisions of civil law cited by Seroglić are sorted by similarity with necessary clarifications thereto. This paper, being the first of two sequels of the article related to Seroglic's accounts on Roman law, shall shed light on the author's fragments on is Greek legal transplants in Rome, theory of law, property law and law of obligations, whereas the passages in relation with other branches of Roman law shall be scrutinized in the follow-up article. [ABSTRACT FROM AUTHOR]