Any sort of way to guarantee a loan without being on it?

[Justin Wilcox]

Hello,

I am in a position where my Dad would potentially be willing to let me use some of his reserves as "backup" as you might say as I invest in properties since I am not cash heavy. 

I can pay for the deal to make it work, however my DTI might be a little high warding off the underwriter.

Is there a way on loans to put some sort of contingency on the loan like, if I default that he will be liable without having the loan show up on his credit? 

Thanks!