Hi. If you want to work with the geotic spirits, you really only need the target’s name and to picture the target’s face in your mind. You don’t need his/her birth date or a photo, but you can use one if that helps you picture the target better in your mind. For lust and sex, I recommend Sitri. For love, I recommend Sallos.
The in-tranquility spell is a scary one. I wouldn’t recommended it unless you really hate your target and you want revenge. It is not really a love spell. It falls more into the curse category. When you perform this spell, you’re calling up a damned soul from hell to torment your target to think about you all the time. The only way the target will find release from the torment is by contacting you.
The problem is, this spirit you will call is not a demon. It’s a damned soul. And you can get a little backlash from the chaos it will create. Demons work with order and dignity. A damned soul, not so much. If you decide to perform the in-tranquility spell, don’t do it in your home. There’s also an urban legend that if the spell works, the magician will take the damned soul’s place in hell after the magician passes away. I don’t believe this. But who knows?
My recommendation is goetic spirits. They’re awesome and they deliver. But keep in mind that love spells will not always work, because of free will and all of that stuff. They also don’t always work the way you expect. You might only get a look from the target. Or the target might keep her feelings a secret.
Also, remember not to lust for result. Cast the spell and forget about it. If you can’t forget about it, feel good, knowing and trusting that it will work. Good luck.