Definitely a discount but I don't see a third or a half at all.

But you can’t refinance a house when the rent is half the mortgage.

We had an investment group willing to come in and zero-lot line a dilapidated apartment complex in Corvallis and give the tenants the opportunity to buy to help solve our affordability crisis here, but nonetheless, the city forced their hand by needing a half-street development after changing zoning that killed the deal.

. - half of parcel can also be sold off as only one half has the SFH and ADU on itOwner is quite firm on the price.

I don't see how you can force the other tenant to pay half for the service call. 

Probably less than half.

As of yesterday, I listed at 1995 with half off first month for a Nov 1 move-in. 

If I continue to charge $500 month, that's $6,000/year, If half of that went for maintenance, it's still $3,000/year.

32k or even 42k on a half million dollar house doesn't sound all that good.What's your projected cash flow after all your expenses including a likely higher mortgage payment than the current owners?

I say that but my goal for sfh rentals here in illinois was to get to 20 houses in 10 years and I ended up getting to 83 in 15 years (I've since sold half though so I don't own that many now).