Why stop yourself from that option of a price reduction/discounts versus just terminating if you do not like it?

Reduction or waiver of rent?

Otherwise it may be that you simply could not afford to move into a house of equal stature unless you are fully relocating without a reduction in income. 

This not only saves you on interest but also means you'll own your home outright much sooner.Effective Interest Rate Reduction:Perhaps the most compelling benefit of paying additional principal is the reduction in your effective interest rate.

If your HELOC is the type that's IO for the first 10 years, a 2% reduction in the rate should mean a slightly lower payment even though the new loan is not IO.

The result is not good for the non-owner occupied units: they all come up for sale at the same time and sit on the market, multiple price reductions and falling out of contract etc.

I am going back to the seller to request a reduction in price but I have never had this specific issue. 

They don't often accept the dispute because they're usually in the right to tax the way they do.The only other alternative is called the ATI tax exemption, which is a 25% reduction in the new tax bill from the old tax bill, but you have to meet a number of criteria for this to be accepted by the County.

Use one of your existing properties to both leverage No downpayment and ask for a 2% reduction in the interest rate.  

I usually advice my clients to form entities based on three factors - legal protection, tax reduction, compliance.