If your existing rates are 3.25% and 4.25%, you are 100% going to take a hit on rates and subsequently, cash flow. 

I’m also weary about what’s going on in the housing market right now with high interest rates housing will go down immensely in prices.

.- Both boilers installed new 2017- Both electric panels upgraded 2015  - Shared Backyard access for bottom 2 units- No Parking, No Central Air- House built before 1900- Roof about 20Yrs old- Assume Fed cuts rate at least .25 point later this year Any thoughts would be appreciated.

The biggest constraint on these communities is financing rate uncertainty.

Maybe because I weighed 105 pounds in my gear in high school. 

He would be safer in a savings account at that rate (I know what you're thinking... appreciation, though).

Assume a 10% (pulled out of the air number) interest rate on the heloc.

They also claim that their property management fee is 10%, which is true as long as the unit is occupied, but if you factor in the first month rent payment for placing a tenant and a 5% vacancy rate (about once every two years) then the property management fee is closer to 15%. 

Im thinking of renting out my primary which will cashflow $650 (no management fee, self manage) because of low interest rate i got it for 2% which still has 2 years before rates renew. 

@Sebastian SoveroThere are 3 main parts to a seller financing deal: down payment, interest rate, and price (4th would be the term).