1)
Why does the Torah discuss the redemption of one's house twice - in the current Pasuk and in Pasuk 15?
1.
Yerushalmi Shekalim, 4:4: The current Pasuk is referring, not to a house, but to one's property, and it teaches us that Hekdeishos go to Bedek ha'Bayis. 1
1
See Torah Temimah, note 66, who elaborates.
2)
What are the implications of the word "ve?Ish ki Yakdish es Beiso"?