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

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

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

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?

The owner bought it for cash, so no mortgage.

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.

They were investors, and would not pay more than what they could rent it for and make a positive cash flow.

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

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