Maybe we can have lunch sometime. 

If not, what are you paying for or how do you split the utility cost?

Laundry, cleaning, putting things back in place, lunches for kids etc. 

(I actually have a detailed list on my website) what do you think a fair split would be?

They do the work, you put in the money and the two of you split the profits 50/50 when its sold.

A person who owns a rental is not necessarily in a commercial venture.I see many private lenders attempting to classify loans as a means to justify their lending activities, they usually have misconceptions making a decision based on common sense, common sense doesn't always apply in splitting hairs or lending.If you make a loan to an individual, regardless of their intent to use the funds, it can be a consumer type loan, and loans are also reclassified after they are made.

Know going in who is doing what, where the money is coming from, how it will be paid back, how profits are split, how they are figured, etc.

If you can split the land into 6 parcels of roughly the same size (About 50-60 Acres) Find comps for those parcels...

If that's the case then I have to split up taxes, insurance, ect. between personal and business use.

If I was to find a property, and ask one of the investors to put up $15k and I put up the other $10k, then every quarter split the positive cash flow between us at some pre-determined percentage.