I do not plan on paying interest on the HELOC for more than 2-3 months, so I guess the better question is will my portfolio benefit from acquiring a 4th property by leveraging a cash flowing LTR and therefore increasing the interest rate and lowering the cash flow on that property?

The shorter the prepayment term has an impact on increasing the rate.4.

Not sure if I need to increase the fees.

There is no insurance that covers an increase in HOA assessments. 

Based on the data I was seeing in Airbnb, I can tell that the property was well located because my views and favorites in the Airbnb were significantly higher than the other properties in the areas, especially after the number of reviews increased.

The logic here is that it’s far more difficult (and costlier) to evict a nonperforming tenant than it is to screen for a good one.Like @Greg Scott said, see if lowering your asking rent increases the number of applications you receive.

I would then pass that on to you in a rent increase of $100/month more/less.

.: There IS going to be a big impact on Real Estate, especially for Single Family and small Multi-Family that is Owner Occupied.The SALT Deductions are slated to expire at the end of 2025.Trump has already said that he will allow it to Expire:https://about.bgov.com/insights/elections/2025-tax-policy-cr...This is NOT a small change.The Standard Deduction gets reduced by about 40%.Then you get to deduct the SALT (State and Local Tax) that you paid PLUS up to $1 Million in Interest from your Mortgage against your Federal Tax Return.The only limiting factor will be AMT (Alternative Minimum Tax).In 2017 when this Cap was put into place, it made sense.However, now that the average Home sells for about Double what it was back in 2017, many normal Americans can benefit from the Expiration.I'm hoping that the Trump Administration does not extend the Cap.Too many people will love him more if he allows it to Expire!

If they are not managing it to your standards, hire a different property manager and let them manage it.

Just a standard borrower hardship form.