How does Subject too benefit the seller?

[Jon LaBorde]

I’ve been researching subject tos and I just just wondering, does subject to benefit the seller in anyway other than getting the mortgage liability away from them? The way I heard it explained is that you take over the existing mortgage and then you can either rent it or transfer the mortgage to someone for free but the videos I’ve watched never say anything about giving the seller anything other than money down to lock it up. I’m just curious, if anyone can give me a better explanation I’d really appreciate it, thanks!