Anspruchsgrundlagen:

f ü r   L e i s t u n g   a n   V e r t r a g s p a r t n e r :

§ 326 Abs. 4 i.V.m. § 346 Abs. 1 BGB
§ 346 Abs. 1 [i.V.m. § 437 Nr. 2 / 634 Nr. 3] i.V.m. § 323 BGB
§ 346 Abs. 1 i.V.m. § 324 BGB
§ 346 Abs. 1 [i.V.m. § 437 Nr. 2 / 634 Nr. 3] i.V.m. § 326 Abs. 5 BGB
§ 441 Abs. 4 S. 1 BGB
§ 638 Abs. 4 S. 1 BGB

§ 122 Abs. 1 BGB
§ 179 Abs. 2 BGB

f ü r   L e i s t u n g   a n   D r i t t e :

aus [§ 437 Nr. 3 / § 634 Nr. 4 i.V.m.] § 284 BGB

§ 122 Abs. 1 BGB
§ 179 Abs. 2 BGB