Friend buys stock for the partnership.
The partnership owes a debt to the friend.
But the friend puts the stock into the business, so it becomes partnership property ... ie jointly owned.
The dad lends money for a car.
The business owes money to dad.
But the car also becomes partnership property.
The partners fall out.
The partnership ends.
In the absence of any specific agreement, the partners have an equal claim on any partnership assets. But they also have the two debts.
The partners have to agree how to distribute the assets, and pay off any creditors.
Trouble is,mothered may be creditors in addition to friend and dad, who also have a claim.
The partners have to treat all creditors equally.
The friend has failed to treat all creditors equally. She has appropriated the entirety of the partnership assets towards the claims of two specific creditors, namely herself and dad.
As a partner, her own claim ranks below the ordinary creditors, because it is treated as capital introduced to the business.
It seems possible that the friend has acted unlawfully