My take is that a 90% seller note already de-risks the transaction substantially. Of course, due diligence is still essential. However, I also want to weigh the overhead of a three year QoE on a Sole Proprietorship vs. the risks of killing the deal with what may be considered by the owner as too much overhead.

Deal $1,8M on $600K SDE (to be verified).

I don't want to skimp on important steps so looking for additional perspectives for this community.