I feel like we are headed in the right direction, but I want to avoid any unforeseen financial issues.

Also, he might be able to qualify for one of the exemptions if he has valid "unforeseen circumstances."

They use numerous formulas and calculate for unforeseen items to avoid any potential losses due to purchasing property without enough profit margin.

Your buyers needs to have insurance against any unforeseen situations.

Not in SA but I would say 10% margin is too slim. 1 error or unforeseen issue will wipe out your profit.

So many unforeseen issues can arise when digging into a rehab project.

The only concern is we get a rental contract in place with a tenant and for some unforeseen circumstance the deal falls apart at the last second and we don't close.  

We ask for what it would cost to do XX repairs and we ask for 3 different estimates, so we know that the price will not come in higher than XXX or lower than YYY without some unforeseen repair.

I’d squeak by and repaIr until you got a healthy reserve to cover it plus any other unforeseen expenses .

For the extra few thousand dollars a year in "potential extra profits",  it usually gets eaten up in unforeseen costs or poor management.