(1)   

      (a)    A subscription for shares entered into before incorporation is irrevocable for 6 months unless the subscription agreement provides a longer or shorter period or all of the subscribers agree to revocation.

      (b)    Unless the subscription agreement provides otherwise, the filing of the articles of incorporation by the department constitutes acceptance by the corporation of all existing subscriptions to its shares.

   (2)   The board of directors may determine the payment terms of subscriptions for shares that are entered into before incorporation, unless the subscription agreement specifies the payment terms. A call for payment by the board of directors shall be uniform so far as practicable as to all shares of the same class or series, unless the subscription agreement specifies otherwise.

   (3)   Shares issued under subscriptions entered into before incorporation are fully paid and nonassessable when the corporation receives the consideration specified in the subscription agreement.

   (4)   If a subscriber defaults in payment of money or property under a subscription agreement entered into before incorporation, the corporation may collect the amount owed as any other debt. Alternatively, unless the subscription agreement provides otherwise, the corporation may rescind the agreement and sell the shares if the debt remains unpaid more than 20 days after the corporation sends written demand for payment to the subscriber.

   (5)   A subscription agreement entered into after incorporation is a contract between the subscriber and the corporation subject to s. 180.0621.