ah so I can go to delphine and have the housecarl join the blades and I can live in my house in peace, I'll try that, thanks!
Best "Nice guy" solution out there. Here are some other lame ones:
If you are on a PC, you can just type "disable" in the console and they will vanish.
Likewise, you can use simple commands to either disable just their talking, or reduce the range at which they say things to 0 or 1 (practically have to bump into them before they talk).
I don't mind using the console to overcome such annoyances, because you technically aren't cheating. It's more like a quick, homemade mod.