I have not seen this type of arrangement discussed here in the forums.

They have more of an incentive to workout some form of arrangement that leans in your favor. 

For years we gave tenants the option to cut the grass themselves or opt into our lawn care service, which we have arranged with a provider.

Per our arrangement, I was to bring $12,000 and my brother was to bring $3,000, totaling $15,000-- the 20% down payment for the loan. 

The client can then decide whether they wish to keep the property inside the entity or arrange to have legal title conveyed (transferred) out to them via deed.  

When you start asking the landlord to cover expenses and split profits it’s really a property management arrangement as opposed to arbitrage.

Are there any verbal agreements or arrangements between the current Landlord and Tenant?

Could we just do a regular seller finance arrangement, and she continues to pay down her equity loan, building in a small arbitrage play for her?

ALL sales are absolute.. with some having a right of redemption ( which is rare as hens teeth).Checking Title can be the biggest stumbling block for a one off bidder.. the bigger players will have arrangements made with title company or I suspect bigger law firm in that area.. to run Title on ALL properties that come to bid..

Also, on another website I asked for links to you tube tutorials or blogs or anything that helps a newbie learn how to arrange the tracking of the income/output.