Thank you for your comment @straighttalk :)

You raised very interesting questions:

How do we verify that the assets tokenized actually exist

I suppose that this is a responsibility of the country in which the company is registered. In many countries there are rigorous restrictions that securities have to meet. Taking a look at the American SEC which limits even honest companies I think they would never allow to offer tokenized asset that actually doesn't exist.

Also I think that Polymath or any other platform would never allow to that.

how binding would the contract be on all parties involved?

I am not sure if I understand the question properly. What do you mean by 'binding'?

Greetings,
Jan