I’ve recently been thinking about renting out my current primary home (built & moved in 2019: value $550K: have a mortgage loan of 2.65%) and buying a new primary home (built in 2020: value $700K: thinking 20% down +80% loan to purchase) in the same area.

Currently I own one house which is my primary residence. 

I have a primary home that has a lot of equity.

My husband and I are looking to buy a fixer upper from our city to rehab for our future primary residence. 

You will also have added costs because the primaries that are currently mortgage free will now have mortgages.

Need some help evaluating rentability of my condo (current primary home): 2Bed2Bath condo in Burlington, MA.

As far as being your own GC, also known as 'Owner/Builder', everyone should be aware that most states (California is one, I looked up GA and it seems they may be as well) do not allow an investor to act as a GC on any property except their primary residence, and even then there are limitations.So check local laws before starting down that road.....

We are looking to buy our new primary residency in Tennessee.

Don't over leverage your primary residence. 

Your primary insurance policy with $300,000 in liability coverage should be sufficient in 99.999% of all lawsuits.5.