Look, I hope it is not the case and your buddy does not stiff you, but I used to own aparmtment buildings. I had tenants who could not pay.
The sincere ones WORKED for me to pay off the rent (there is always painting or cleaning or something to be done...)
The ones who did not pay and did not make it good all fell into another category- deadbeats
once again... I hope you are NOT going to experience that, if you do I will be the first to apologize- if you promise to come back and tell us if we were right.
I make no promises to trolls like you.