Should I refinance, I know I cannot do  HELOC because it is not my primary residence. 

Speaking from the Arizona perspective, we are experiencing continued growth, attracting lots of new residents (Californians choose Texas and Arizona as their top 2 places to move).Here's an economic forecast:https://www.azcentral.com/story/money/business/economy/2019/12/11/arizona-state-university-annual-economic-forecast-predicts-slower-growth/4398074002/Not sure where you are getting your "low rent" thoughts, maybe compared to CA.

The Taxable Value is uncapped and equated to the SEV upon a sale or other transfer of property ownership, with limited exceptions.Homestead versus Non-Homestead Millage RatesCounties & cities in Michigan are allowed to set their own millage rates, with one restriction – a primary residence (Homestead) is exempt from up to 18 mills of school taxes on their Homestead property.

Do you have to commit to only serving one type of resident over the other?

You can check out their thoughts on how to approach seller financing here: Making Your Primary Residence the BEST Investment Ever (Better BRRRR!) 

Investment Info:Single-family residence fix & flip investment.

I'm not so worried about "anonymity" because the house is our primary residence, so we're not hiding, but we want to look like we don't have excess assets.  

They may cost approximately 10% of your rental income per month, but may be worth it when you are residing out of state. 

As a non-resident, I’m finding the process challenging due to factors like high upfront costs, foreign buyers’ taxes, and financing limitations.I’d love to hear your advice or experiences regarding:•Strategies to manage the high initial costs and foreign buyers’ taxes.

Investment Info:Single-family residence wholesale investment.