Not a real spoiler as I'm only guessing here, but I predict Lady Suha saves Grandpa's food division with her mom's dumpling recipe. The money she should make from her percentage of sales (hopefully she gets one) would pay for Hwaandang and all the necessary repairs.
To be safe I'm posting this question here because I'm not sure if episode 16 has aired or not on the other channel.
Does anyone know why they threw the chicken in the air at the wedding? What does that symbolize? And I was also wondering what they were throwing on the cloth they were holding? It looked like some was rice but some was a dark color.