I am concern with the high interest rates but even with those I managed to cash flow which is what I am looking for. 

Purchase price: $100,000 Cash invested: $100,000 Bought this house and got 2 more free What made you interested in investing in this type of deal?

You'll incrementally increase cash flow, which is fine, but may not be the whole of what you're seeking.

Is a 50/50 split of all cash flow and appreciation appropriate? 

. $80k will net you $1200/mo.That said I am of the opinion that rent rates (up significantly since Covid) are plateauing, I don't expect to see them climb significantly higher.Regardless, factor my position of being a cash-in-hand personality who doesn't much care if the hype is telling us to buy-buy-buy or run for the hills.

Daria,Even with fixed income you still qualify to take cash out through a mortgage (cash out refinance). 

Getting into the MLS is key to get exposure to all Agents in the area who has pre-qualified and/or CASH. 

The owner bought it for cash, so no mortgage.

We are taking a cash out loan on my primary residence since the rate is over 1.25% lower.

However, ensure that the transition to 6% interest after 2 years is manageable with your projected cash flow.