If you cannot find email from Microsoft store, the product key is listed in the Product Keys page of your Microsoft Store Account. You can also find them on your Purchase History page. You must sign in using your Microsoft Store account on the web site and then click on the purchase history to see the Product Key.
Re: States that require a boundary survey. Well, in the spirit of the question, MA requires a survey for the creation of any new property lines. Subdivisions that require an approval from a planning board, of course, need plans and current surveys.
Surveys are typically needed when there are changes to land division, ownership transfers or erection of fences or other structures that are near a property boundary. Since property surveys vary in complexity, the price of a survey will vary as well. The below items will impact pricing. A Land Surveyor should never be chosen on price alone. Registered Land Surveyors vary in knowledge and ability.