Hi Brad, I believe a 401k loan may be helpful in terms of putting toward a down payment if needed. 

Based on my calculations, even with a low down payment, I can achieve positive cash flow (with aggressive enough house hacking).

Can a down payment assistance program be used with the 203k?

Yes you can use commission as sourced funds for down payment on a conventional loan.However some lenders have internal overlays that don't allow it.

The payment is about $1320 per month.

I have some of the required funds in a HYSA, but will most likely need to draw from another account and I'm curious which method is the most efficient in terms of taxes/capital gains, penalties, loan repayments, etc.Based on my previous transactions in the market, I estimate ~$45k cash to close: $20k for the down payment, $15k for closing costs and prepaids, and $10k of starting reserves.

After talking to another family member they said they would be willing to go in on the duplex and offered to pay the $40,000 down payment and help with any repairs but they want to be "partners" or "own" a percentage of the duplex.

The payments are super easy!

We currently accept rent from tenants using a variety of 3rd party apps-Cashapp, Venmo, Zelle but are moving away from accepting payments in our individual names and want to start accepting payments directly to the LLC/business accounts, but LLC accounts do not accept Zelle and there is a fee for using business accounts on Venmo.

Could VRBO users from Michigan provide some clarity about the topic of sales tax/lodging tax collection and payment to the state.