Track rental deposits, accrue statutory interest and settle them at lease end per Section 551 BGB
Build legally-capped rent increase letters per Section 558 (Vergleichsmiete) and Section 559 (Modernisierung) BGB with deadlines
German lease management: Kaution cap, Staffel-/Indexmiete (§557a/b BGB) with Destatis-CPI escalation and arrears
Operating-cost statements per BetrKV with Umlageschlüssel allocation and the §556 BGB 12-month deadline
WEG condominium management: Wirtschaftsplan, Hausgeld, Eigentumerversammlung voting and Beschlusssammlung per WEG / WEMoG