Is this a good amount of cashflow for a BRRRR? I was anticipating a little more
I don' think you'll be able to pull $124k out. You should expect to leave 25% equity in the property, which works out to a loan of $112,500 (assuming $150k ARV). So that leave a little money in the deal.
You might just squeeze out $150/month in cash flow, which isn't too bad.
Ok, thank you for looking at it.