Some investors I know are also exploring turnkey rentals in more affordable markets to offset the higher financing costs.

CMHA tends to prioritize bedroom count since higher bedrooms can mean higher voucher limits, but you’ll also want to make sure the space still feels livable and flows well.

There are some instances where it makes sense to invest in other avenues if the you can anticipate higher returns.

I also wonder if I can stop lease early with all parties agreemend and sign new lease with higher price since its more people? 

Refinancing at today’s higher rates would likely hurt cash flow unless the new investment significantly outperforms.

Far higher than your interest rate.  

If the property qualifies as a separate activity, you may be eligible to claim bonus depreciation through a cost segregation study, which can provide substantial upfront deductions — particularly beneficial if you are in a higher tax bracket.However, if your income level is lower, the cost of the study may outweigh the benefit.

Assuming these loans are 50bps higher, a $400k mortgage at 6.75 would be 2,330.50 per year in payment where as a 30 year mortgage would be 2,463. a 7 year ARM at 5.75% would be the same as a 50 year mortgage but it would take 21 months to pay down 10k....

With this four-unit property, my purchase cost is quite higher than my other three single family units.

It is much higher-risk than seller financing no matter how you do the paperwork or how good your intentions are.