Refinance primary residence to buy rental property ?

[Mac Ar]

Hey Guys, I am new to real estate investing and looking to buy my first investment property here in Florida . I already have a primary residence and my mortgage on the same is @4.3% for 30 year fixed . I have been able to cut it down principal significantly by paying off early but I realized the benefit of passive income rather than paying of the house early . Now I am wondering if I should refinance and take a buy out .Doing so will give me liquidity to purchase my investment deal/s but my primary residence will again be under bank . Please suggest what should I be doing paying of my mortgage early or refinancing , cashing out and using that money to buy more investment deals ? Your guidance is really appreciated ! Mac