Ahh, yes, the Nomad strategy.
As a purveyor of this particular strategy myself (currently at 5 doors), I am heavily biased toward the Buy, Occupy, Rent, Repeat (BORRing???) owner-occupant-turned-rental-rinse-repeat philosophy of real estate investing.
I went ahead and ran some simple mathematology for yee. Assumptions:
-$150,000 single family home price as you indicated
-owner occupy for 12 months, as required
-$1300/mo rent rate after owner occupancy period (based on random selection of Zillow listings), 10% property management, 3% inflation, 3% appreciation on value and rent, 10% maintenance, 3% vacancy
-mortgage at 4.5%, doing 5% down payment with FNMA financing
-$100,000 per year income for you and spouse, 21% effective tax rate, $5,000 per month personal living expenses
-build up and maintain a minimum emergency fund/cap ex fund of $30,000 cash
-doing this for five years before getting sick of it, and thus settling into the 6th such house forever
Based on these assumptions, and maintaining that $5,000/mo personal lifestyle, your real estate investments will provide more than 50% of that $5,000/mo lifestyle cost within 30 years. Near the 35-year mark, with loans paid off, your real estate holdings will provide 86% of that $5,000/mo retirement income. In terms of net worth, this plan theoretically surpasses the $1 million positive net worth mark from just real estate in month 192 (16 years from now, inflation adjusted to 2019 dollars).
Here's a raw cash flow chart, including cash flow benefit from depreciation:
Analysis and chart courtesy of RealEstateFinancialPlanner.com. Your mileage may vary.