1. To find out the creditor's rights and debts of the company, the original company shall settle the dispute. If it is purchased with debt, it should be stated in the purchase agreement that when signing the purchase agreement, the creditor's rights and debts transfer agreement should be signed, and a list of creditor's rights and debts should be attached, which should be regarded as a whole with the main agreement, so as to distinguish the responsibilities in the future.
2. After the purchase is successful, the industrial and commercial registration shall be changed, including the representative and address different from before.
3. Both tax registration and bank account seal should be changed.
In fact, it is very convenient to start a new company registration, which is much more troublesome than picking up someone else's company. I suggest you start a new company yourself.