Any tax implication for non-arm length real estate sales?

Hi Community,

 

How are you?  A question.

 

My daughter wants to sell me her primary home for $600,000 in cash while her property value worth $850,000.   She sells me a low price because she knows that's all I can afford in cash.   She has no desire to sell it to anyone else because she wants her kids live near her grandma (i.e. me).

 

Anyhow, my daughter will use a portion of the $600,000 to pay down her current mortgage first, then take the remainder plus her own saving to buy a larger house (worth $1.3M) next door to suit her family needs.  

 

Is there any tax implication on both sides we need to be aware of or concerned? 

 

I look forward to hearing your advice and the knowledge very much.

 

Thank you.