Wrap around loans payments

[John Ho]

I’m in negotiations for a sale by owner property.. We plan on doing a wrap around loan and I like to know what’s the best way to go about this cost effective and secured.. He said we can use a 3rd party send them the monthly checks and they will pay off the loan which is 20-30 a month. Or Should I send him the check directly and trust that he’ll pay off the loan. What you’re suggestions? Btw the loan is roughly 125k with payments of 2,800 a month for 5 years.