Since we own this property together, would we need to form a LLC, partnership, with a predetermined percentage of ownership, say 35, 35 , 30%.

Any landlords use a hybrid approach, perhaps a M2M to vet a new tenant for some pre-determined period of time, and then roll that tenant into a long term lease?

The Option contract is a contract between the owner and the "potential" buyer giving the potential buyer the exclusive right to buy the property for a predetermined price during a predetermined time frame. 

Putting you into a cycle where we are ideally picking up 1 good performing Quad-plex every 18'ish months, until we hit the pre-determined net free cash flow rate wanted to make you financially free (match working income).

Always financial, and based solely on what their predetermined plan tells them those numbers are...at each timeline in that plan. 

If you had a real problem, it wouldn’t be of any help.Across the country, there should be a pre-determined landlord policy.

Make sure to predetermine business activities, meetings or event setup.If you work from hotel during vacation- you can deduct internet, faxes, or business book to read on flight.  

For now i've just been billing their time hourly plus materials, regardless of work orders or renovation, however I was considering pivoting to a "Quote" system where I charge a pre-determined rate for a reno project, similar to how most other companies do it. 

IN NO EVENT SHALL SAID PERSONS BE ENTITLED TO RECOVER ANY CONSQUENTIAL, CONTINGENT, SPECIAL, INDIRECT OR INCIDENTAL DAMAGES, INCLUDING BUT NOT LIMITED TO, LOSS FOR ANY PERSONAL INJURY OR DEATH OR FOR ANY PROPERTY LOSS WHETHER OR NOT SAID DAMAGES ARE CAUSED, IN WHOLE OR IN PART, BY ANY FAULT OF [COMPANY NAME], OR ANY BREACH BY [COMPANY NAME] OF ANY OF THE TERMS AND CONDITIONS OF THIS CONTRACT OR THE WARRANTY.You agree to hold harmless [company name] and its representatives and contractors for damage to property caused by work performed under this contract that is not caused by [company name]'s sole negligence such as (but not limited to):Damage to sheetrock caused by vibration.Driveway damage (many driveways are undermined and [company name] cannot predetermine this condition). 

You can even put in there that after a certain day, if they don't complete, they need to pay you for days past the predetermined date.Hope this helps!