Interest rate and cash flow

[Troy Forney]

So we just closed on our 5 buy and hold SFR in 1.5 years. We have been doing the BRRR strategy with good success. Net annual operating income on the past 3 properties has been around $3300. a year or about $275. a month. As interest rates rise (and taxes are higher in some areas) I find my NOI dwindling. Projected $2272 a year (after homestead deduction comes off) or $189./ month. (STILL A 28% ROI) Only $8000. invested after cash out refi.

So still very good return, however, just looking for strategies to increase cash flow as interest rates go up.  Been doing 30 yr fixed or 15 year (amort. over 30 yr).  Any other ideas?  Different types of financing?  I have tried to keep it basic, but may need some new strategies.