Looking for insight on how my sister and father should split the profits from their first flip:The way it's worked:Dad put up $100k of the $114k sales price (bought on Auction.com in a "cash only" transaction).

If a realtor is needed, I am hoping to Negotiate and split the commission and use it towards my closing costs.

Find an old vet that is tired of managing bad contractors, split a deal for doing the rehab and learn on the job.  

Normally I'd call the plumber, pay him, and bill them.Sounds like they are falling on hard times and will be out of your property soon.Your choice as to let it go or charge their security deposit - perhaps splitting it with them is a good compromise.

Not to mention the fact that you can split up the workload to make it more manageable for everyone.

These out of state groups partner with real estate gurus on the nationwide speaker circuit and purchase attendee leads or partner for a split of the profits.

Keep in mind, that you'll still have to split your commission with them if you are responsible for any transactions in your brother's business.  

They think that everything you do as an agent should be run through the company, so they get to split the commission with you.

So for a $55k duplex (my price) it's going to cost me (splitting in half) $135.

Each state is different in this procedure so you'll need to check with your state, but in a best case scenario it'll take you years.You can also work with a real estate attorney to either force the heirs to grant an easement or get a lot split proportionate to each property needing ingress/egress and through the process create an easement for such.To find the original developer go to the governmental agency building or planning department having jurisdiction over the property and ask to see the historical files for the subject home and the parcel/lot approvals for the remaining lots in the development.