You made him think he could risk, not just this project, but everything he owns, on a personal guarantee.
你让他以为 他不仅该拿此项目为担保，还应该把他所有的一切资产都拉下水。
英语百科
Loan guarantee
A loan guarantee, in finance, is a promise by one party (the guarantor) to assume the debt obligation of a borrower if that borrower defaults. A guarantee can be limited or unlimited, making the guarantor liable for only a portion or all of the debt.