I am not an attorney but I would write something likeIf event X happens then buyer and seller agree to YIf  event X does not happen then contract is void and of no further effectThis might not be a valid contract as it depends on another factor happening which neither of you have control.

I am about to break ground on the remodel of my home and am building an ADU over my garage for the same property.My question is....is it worth spending the money to separate the utilities or just have one water, electric and gas meter?

I recently bought a two family home and the basement is fully finished without a kitchen but ample space  and I have been recently toying with the idea of renting the basement atleast as a room sharing however being a older home it doesn't have the kind of electrical capacity to accomodate a decent electric stove which has very high amperage requirements (atleast 150 amps -200 amps) besides I am not considering gas stove as an option.As is I can envision fuse tripping beside I don't have any 220 line,also it gets very cold in winter in the basement so I will most likeli need a supplemental heater in the basement so elctric upgrade seems like a must if I decide to rent it out.However I was wondering would it be a better idea to have solar panels to supplement my additional electrical needs? 

Does anyone know what can be done to get him out if I purchase or what I can do to make the adjustment in the rent even thought he supposedly has a valid lease with 3 more years. 

I think the original $120k wasn't valid, but the owner has verbally said he'll sell it owner finance for $150k with $12k down, and he's giving my friend until 1/1/19 to come up with the down payment as he continues to rent. 

Gas if it takes more than reseting or relighting pilot I call.Roofs depends on how much time I have or how difficult.Appliance repair, My neighbor is a retired sears repair guy so I mostly punt on that as well.Carpet I hire out.

I was told by realtor that I need to get gas, water and electric on for inspection.

Is this information valid?

I’m not sure what you mean by ‘tactic’ as there’s a valid inspection period written into your contract that the buyer has to perform their due diligence.You can’t just break the contract and walk away without legal ramifications.  

Are the units submetered for gas water and electric ?