Creative Sub-to deal. Need help or advice

[William C.]

I have a situation that I'm trying to get creative in and I want to know if I'm going about it the wrong way. Here the deal and my plan. A seller needs to sell so they can move on and buy a smaller home. They plan to rent after then sell and then buy something. They have a mortgage of about $180k. We plan to buy for $200k, renovate for $70k and sell for $370k. Here's where it get tricky. I have a rental I could move them to for 6 months. We would buy the home, or lease it? Renovate, and then sell. Pay off her loan. Give her the difference between sales price of $200k and mortgage. Profit the rest. By going route, we save 2% transfer tax, I leverage my empty rental to sweeten the deal, we avoid holding cost and closing costs on the purchase. We could save nearly $20k by doing this. Am I on the right track with sub 2? Or am I just complicating a good deal and should I just buy, fix and flip? Any advice would be much appreciated. This is not my first flip. I have been an agent for 8 years so I'm well versed in real estate transactions. The renovation and ARV numbers are accurate and conservative and are not just being given to me by a wholesaler.