.)$10K out of my $30K line is only about 34% utilization maximum after I take each chunk.

The important things to consider about HOA fees is that they usually include some utilities: Water/Sewer, Trash, sometimes shared amenities like gym, clubhouse, pool, and they are saving you the time and headache for property maintenance: lawn care, tree timing, roof, siding, etc.

I also realized that I don't have to pay any utilities at all with single family homes.

Typical utility bills (which we include) are $100-300/month.  

Utilities, including common area will also be different.

Quote from @Eamon Conheady: I was purchasing a multi family through an IRA LLC and was utilizing debt to finance it, requiring a non-recourse loan.

I use this for tax and insurance which all properties have)Expenses (general business like admin/legal and by unit for repairs, trash, utilities...)EBITDA (earnings before interest/taxes/depreciation/amortization.

I’d love your insights on how best to utilize my LLC in this process.

Need to watch out for utilities like water meter, electrical, gas, and sewer.

My tax advisor referred me to them, and I also utilized cost segregation on the properties, which significantly reduced my tax bills.