Trees that have large surface root systems shouldn't be real close to the house foundation -- especially true if you have a basement. That said and since pine trees aren't in that category, I am a believer in keeping all the trees possible. When my wife and I built our house on a half acre lot with hundreds of trees(including probably fifty 100 foot high pines), we didn't cut down one of them but built in between them. Some would have cut all of them down but we didn't. Certainly, there is some extra work associated with that but it just depends what you want. In your case it will depend on what agreement you can come to with your future spouse.