Thank you @Arlen Chou. 75% of ARV for the refi is common in Texas (I've done up to 80% with a commercial loan) but that's one thing I noticed as I was writing you. Normally a HM lender will only lend up to 70% for the purchase and rehab. In that case I need to account for the extra 5% to come out of my pocket.
I am talking to two or three people about this scenario now. No one has committed yet. I've thought about points but some other investors don't feel like it's necessary to offer that yet as a 10% return seemed attractive enough to them. If the investor asks for it I can surely consider it. I plan to secure the loan with a first lien mortgage. Which I THINK is where a lawyer will come in? Not sure how much that costs and if it will nullify any savings I was hoping to get by avoiding hard money. Plus it will offer the investor recourse should I default.
I already have a few wins under my belt. I've successfully completed six deals and am currently managing five of them (with one under contract to sell next month). I used hard money in each of these cases. Now I'm exploring "cheaper" money. Trying to scale better, faster, bigger.
My thought is, test this method, make sure I pay my lender back (even if it comes out of my pocket) and see how cheap I can buy. Maybe instead of coming $15k - $25k out of pocket I can get it down to only $5k or $10k.