I'll be keeping your info as I'm about to be a North Carolina resident and property investor.

I have 880 credit score, decent savings, and no other debt except for 300K mortgage on my primary residence (worth $1.5 million).

You post, and potential residents will reach out...or maybe they don't.

Im basically looking for advice on how i can save as much on taxes as possible.Part of the property is your primary residence, which does not qualify for 1031 Exchange treatment.

I encourage you to interview property managers to determine what their approach looks like when managing properties for an investor who does not reside in the market where the property is located. 

Here’s a bit of background on my current situation:I own one rental property that generates $1,900 per month in rental income, and it is paid off ($300K).My primary residence is also paid off ($288K).I’m currently building another rental property with cash ($200K).

Investment Info:Single-family residence buy & hold investment.

there's a tremendous demand for inventory - both primary residences and rentals - and so buyers are willing to accept lower yield than a lot of us think makes sense. 

Other factors as well of course: DTI, the LTV, primary residence vs investment property, etc.

Since you are right out of residency with a good job and not married and no family, you are in a unique spot because you have flexibility right.