And all the deals I do the exit on a fully rehabbed home that I fund and pay for the rehab etc for my clients. is basically 250 and under .. there is not an issue with affordability in much of the US the issue is buyers preferences.

Cost per lead (CPL) is crucial—it shows how much you're paying to get a potential seller or buyer’s info, and you want this as low as possible without sacrificing quality.

The seller should not be expecting you to be the buyer, or surprised when you aren’t. 

From digging into real time market data and calcualting cash flow.. to literally driving for dollars, you want someone with an incredible network of pros who can unearth leads (probate attorneys, divorce attorneys, local fix and flip circles) that might connect you with a ready buyer or flud tenant.

I can see buyers jumping at that if rates are at all near present rates.

For example, an ADU is nice for a rental, but not every home buyer wants to pay a premium for an ADU on their property.This would be case by case and property dependent.

Realtor.com describes how it works as part of your sale:“It tells the real estate seller you’re in earnest as a buyer . . .

I bet you heard but the market around those areas are booming right now, especially since it is a buyers market, it gives you an advantage to get better deals from sellers while people are continously moving there, especially for jobs like tech, logistics, etc. 

For those buyers it's called "parking their money".

Best way to find end buyers is to ensure it's well marketed - Professional photos, professional clean prior to listing, aggressive list pricing.