Some books by notable mujtahideen on topics of Fiqh (Jurisprudential Rulings). Some are available in English while others are in Urdu.
English180 Questions 1 of 2180 Questions 2 of 2Ahkam Al-AmwatIslamic Laws SistaniLegal Rulings
UrduIjtehad Aur Taqleed TajziaIstiftaat KhamnaeJadid Fiqhi MasaelTaqleedAurIjhtehadTauzeeh-ul-Masael Basheer NajfiTauzeeh-ul-Masael Fazil LankaraniTauzeeh-ul-Masael SeestaniMustahab NamazainIlal-ush-Sharae by Sheikh Sadooq:IlalusSharae 1 of 2IlalusSharae 2 of 2