Psychology of Buying / Overcoming

According to my information, I can prove to receive amount X as a loan (after budget/credit check)

Regardless of the property? From a specific bank? This is what a sample financing confirmation looks like (name and bank deleted in the PDF, but it is an original), which a seller would like to see:

No, unfortunately not, as I can see from the sample example. It's just a slip from the financing advisory association itself, stating that I would be able to afford amount XY based on the current budget/investigation query. However, it says on a sample example below that it is not a financing confirmation. Probably makes little sense without a suitable object.

I think that will probably bring little when it really matters.... .