Go conservative ) - Holding Costs (loan payment, utilities, insurance, etc) - Rehab Costs (you will have a good handle on this) - Closing Costs (you will pay closing costs on both purchase and sale of home)  - Profit (minimum you would want to take on the risk.

Okay, that's a very conservative option.

If you run conservative numbers you avoid a lot of this.

Yes I did a lot of various scenarios to understand the risk and I do agree AirDNA is not 100% so I also added more conservative data. 

I agree that the UCC is only a fixture filing, but lenders here in CA can be really conservative.

Dang it @JD Martin, you conservative dudes are heartless

But I have been looking into splitting the duplex into two condos (yes I know it is a lot of work) and I could probably get 325-350k for each, netting me 650-700k.Number:* Mortgage interest 2.5%* Mortgage principle 240k* PITI $2100/month* Rent 2200/month (current tenant on a two year lease)* Potential rent on my side $2400/month * 100k HELOC at 11% (fixed) (not currently being used)* est additional cost to split the dueplex 75-100k (conservative, probably less)     *new siding 30k (just put on a new roof this year)     *legal 10-15k     *fire proofing 15k     * 15-40k for stuff I am not aware of or underestimated on* some of the appreciation is external from the home     *big grocery store put in 3min away     * newly paved road in front of my house     *a building that was falling down across the street has been torn down          * Still a vacant lot with the foundation exposed and fencing around it (so more local improvements are on the way)Part of me wants to take the money and run but man I love that 2.5% interest rate and the $2000/month cash flow (including taxes and capx)I have thought about 1031 exchanging into more rentals, but I would like to pivot into storage units.

Some more conservative lenders may only use 65-70% ARV on the secondary calc.

Market rents are $2,750 but let's go soft and say $2,500 just to be all the more conservative. 

We are conservative investors since we will be out of the country eventually.- These total 10 duplexes should bring in 30K gross rent per month and cash-flow about ~3-4K/month.We don't plan to use any of the cash-flow for personal expenses and after keeping sufficient reserves, we will funnel the cash-flow to pay-off existing properties.