When you say you’ve read through these forums your including the “Older” and “Newer” tabs here? These should get you started if you haven’t. However it’s quite a bit to unpack regarding your questions and I’ll try to address them:
EDITORIAL | LEASEHACKR
What does one primarily start with when negotiating a lease? MSRP, Selling Price, Residual Value, MF, Cap Cost aka downpayment?
The MSRP is set by the manufacturer and is not negotiable. The Selling price is negotiable and should be negotiated as low as possible in most cases. The Residual Value is set by the lessor or captive ( not negotiable ) and is tied to a certain term, 24 months / 10,000 miles per year or 36 months / 12,000 miles per year. The Base money factor is set by the lessor / captive and many dealers will mark it up as one of the ways they generate additional profit. It doesn’t matter if you have an 800 credit score.
Is the 1% rule outdated? Yes
Is the leasehacker calculator still a thing. If so what years is ideal? The calculator identifies the various ways each variable plays into the deal and is more suited for that purpose.
What should an ideal residual value be? It is set by the lessor / captive. Ideally a high rv however a low one can be offset by a low mf or a good amount of incentives.
What is considered a good MF? It is set by the lessor / captive. However the lower it is, typically the better. We have seen some brands have a sky high mf but also a very high residual offsetting it. It’s kind of like a college algebra problem with all the variables.
Traditionally you need a combination of low mf, high rv, a good dealer discount, and some amount of incentives to translate into a “good deal”. Not all vehicles lease well and you haven’t stated what vehicle your looking for so were not really able to help.
When people say put no money down and pay 0 does this apply to the cap cost/downpayment or to the sales tax, acquisition fees, doc fees and dmv fees as well?
Several answers exist to this question though we generally all frown upon cap cost reductions. Many cases it depends what the mf is, as the more you “roll into the deal” the more you are paying on interest. In most of those cases you would also be paying more in tax because the monthly payment is higher. Many of us on here pay inceptions up fronts such as acq fee, dealer fee, doc fee, tax, etc… A difference exists between down and due at signing - the differences are covered in the LH 101 page.
What is an ideal selling price percentage off the MSRP?
This is going to be dependent on what manufacturer and vehicle you are targeting. Many vehicles start at 10% off MSRP and many rarely go above 5% off MSRP.
Hopefully this is enough to get you started!