With the HELOC and then converting it to a term loan you will probably be paying higher interest and/or shorter amortization period on conversion which will mean higher monthly payments.

You absolutely want to be concerned with this.I would just argue what you're concerning yourself with today may be totally different in that 10-20 year period.

I could put a down payment for a conventional (20-25%) 550k duplex, but I feel it could hurt my chances of buying as many duplexes in a 5 year period (for example) if I go conventional VS an FHA at 3.5%. 

After a grace period of 1.5 days give another notice and mention legal action or law enforcement5.

I do have a nightly pet fee but i put in my listing that if someone is bringing a pet for an extended period of time they can also reach out to me to discuss a flat pet rate for their stay.

@Arun Philipnot sure if i understand your question.if you don't have any cash, period, you shouldn't be buying any more properties. 

For the 10 year period spanning December 2014-2024, single-family prices in Austin nearly doubled, yielding an annualized appreciation rate of ~9.4% in that period.With inflation close to its 2% target and an uptick in the labor market, The Federal Reserve may be taking a break from rate cuts.

Can you carry the property for the construction period?

776 acres on the TN River - PERIOD How did you find this deal and how did you negotiate it?

Those are some amazing #’s in that short period of time.