There's no sale until the option is eventually exercised, and when that takes place, the new buyer will do a Purchase Agreement, and the seller will pay off the existing Mortgage...just like a regular sale. 

It is often a feeble exercise. 

Unfortunately, cash flow negative investments are not sustainable, so your decision really becomes one of, how much negative cash flow can you support.You have to assume a lot of variables for these types of calculations but in general:[(Purchase price of duplex x % appreciation x years owned) - (closing costs from purchase and sale) - expected cumulative negative cash flow + expected tax benefits + equity from principal paydown] - [theoretical investment with cash on hand now plus monthly reinvestments of negative cash flow above for the same time period you us for years owned - expected taxes from theoretical investment]That exercise will give you the return or cost of your decision to house hack.

I visit all my property every 45 days to change AC filters, bleach out the AC condensate line, test the water heater T&P valves, test smoke alarms, exercise stop valves etc...a quick 10 minute visit which was explained and agreed to on the lease agreement.Sent an email two days ago to schedule it for next Friday at 10am, no reply no acknowledgement. 

We have a HELOC that we may have to access.In order to pre-qualify for a mortgage and showing available funds, should we exercise the HELOC and get the cash in our bank account before pre-qualification, or is the availability of the HELOC enough to show the funds are accessible?

Anyway we could figure out a way that you get your exercise and I get to enjoy not HEARING it." 

In the event that Landlord exercises its right to repair such uninhabitable portion, the rental shall abate in the proportion that the injured parts bears to the whole Premises, and such part so injured shall be restored by Landlord as speedily as practicable, after which the full rent shall recommence and the Agreement continue according to its terms.

I, like the resteraunt, leave it upon people to utelize their head for more than a neck weight and exercise common sense.

I want to do the math exercise and so I guess I am asking if anyone with a little experience can guide me to what to ask and how to figure it in to see if it is a DEAL or NO DEAL.

The court will side with the tenant with the thinking that your continuation of the lease by not exercising your option to evict over unpaid fees constitutes you having waived them.