Usually, they want you to have skin in the game. 

They also charge me close to $1000 for evictions and lawyer fees plus the repairs for make ready are extra.

Usually the seller wants interest, usually the buyer doesn't want interest, it's negotiable.The title is held in escrow until the debt is paid off.

I then include a letter from the lender indicating a pre-approval for the funds.This way the offer looks good (no extra contingencies), but is completely transparent with the financing details.

@John S.I usually use linen white in an eggshell finish. 

Usually, they are not the same lunches.

Business owners do not usually make good employees.

@Douglas J Andrews, Nope, a land contract usually conveys enough of the burdens and benefits of ownership that the IRS would treat it as a sale. 

It's a good way to have the capital you need and some extra self-savings at the same time.  

The only benefit I would say is what they end up paying for not cleaning the poop in the common areas/yards, which is an extra $200 to $300.