This one is more recommended if you are thinking of doing a flip or a temporary investment since it doesnt have long term effects like the refinance. 

There is current negative cashflow at the listing price, little potential for upside, a significantly reduced offer price is required just to break-even or significant rent increases and utility decreases.

This will decrease your Debt-To-Income Ratio to be more favorable with banks for loans and will improve your credit score as you mentioned. 

Will it decrease vacancy?

.$300 additional each month should drastically decrease the time it takes to pay off your mortgage. 

I do know everyone was expecting rates to decrease in 2024 and here we are, 8 weeks in and they've gone up 35 bps.

So if that Sec. 8 tenant has to leave for whatever reason there's a chance your next tenant may not be Section 8 and thus your rent could decrease.

In my area the water company will forgive excess usage if it can verify there was a temporary water leak causing it. 

And if you're going to manage yourself, it doesn't matter.The pool of buyers decreases as the access to property management decreases.

You move you're stuff into temporary storage and then move it back into your new property.