Multi-family without separate meters may need more unique billing arrangements such as passing the costs through to each tenant on a square footage basis.As far as insurance, landlord will have to maintain their own insurance per mortgage requirements.

Unless other arrangements are made in writing by the tenant, the landlord shall mail the itemized list and any amount due, by first class mail, to the tenant's last known place of residence.

Or is there an acceptable or usual profit sharing for this kind of arrangement? 

Arrange them based on the problem you are most likely to face first, then spend some time researching your laws, how others handle the issue, etc.

Arrange them based on the problem you are most likely to face first, then spend some time researching your laws, how others handle the issue, etc.

R-20) requires use as a 'single family' residence... not 4 people unrelated for a commercial purpose in a single living arrangement.

This might include interest-only payments, longer or shorter loan terms, or different collateral arrangements. 

He will take the other half of the cost to purchase the home and the material costs for repairs.How have you structured your arrangements with contractors? 

If a realtor needs extra income we can arrange for the agent to place the tenant and collect the placement fee.  

I just don't know where to find deep pocket investors that would be interested in this type of arrangement.