He teaches seller financing and he had 12 apartment deals on CI and I asked about seller financing, he says he doesn't do seller financing

The property was bought and renovated with cash, so there are no financing costs—just the opportunity cost of the investment.Comparatively, I’m currently earning 5% in a money market account and 10% from participating in hard money loans.

Seeing more and more seller finance deals out there as properties sit on the market.

Explore financing options, such as traditional mortgages, FHA loans, or other types of financing.

Solar has financing that is zero down and mostly results in a lower monthly payment than you were paying your utility.

You'll get better pricing if you use the Hard Money lender to finance the rehab as well, however, the way it works is you must request a draw.

I advise my clients to get a PML that will finance 100% of the purchase and rehab expenses so when the property is stabilized, we can treat it as a rate and term refi and use the new improved value from day 1!

Also, can someone tell me how seller financing usually works.

I will discuss with my attorney obviously but was hoping to get an eduction from you guys first.Am I incorrect thinking DF does not apply if I sell and finance 3 properties or less per year? 

Like I said this will vary dependent on the lender, experience, credit score (not as important as traditional financing but can help).