Forget the wedding planner. If you're getting married and it's not your first time, the professional you most need is a financial planner.
Most people go into their first marriages with nothing.
If either party hides assets, that could invalidate any agreement they make later. Otherwise, the home will pass automatically to the surviving spouse and then his heirs, completely bypassing the bride's children. Anytime a new spouse moves into a home, the original owner risks losing it. If it's vital that you hang on to your house, you have to take steps to keep it separate from the family assets. Do not put your new spouse on the deed.