Right now I'm thinking maybe storage unit(s).

I’m dealing with a seasoned investor who most likely is delaying till warm weather , and I’m stuck paying taxes . can I cancel the contract , on grounds the date has come and gone? 

Make sure the income is stable and not seasonal.

Or just perform option 2 and see what happens during the rainy season and winter?

Are you buying the property with any rentals already booked for the season?

As for employment, I work for the WIPP site, so unless we as a nation have decided to no longer monitor the only long term nuclear waste storage facility in the world, I expect to keep my job.

That is the per season flu death estimate by the CDC and the season starts in the fall and ends in early spring  (about 3.5 months). so that is comparing a new disease to a season that is nearly over.

You don't need an ITIN to purchase, but will need one prior to next tax filing season with IRS.  5.

Facts below:-3.5 month close to season downpayment fund source i will be using-$500 earnest money deposit-Current Valuation: $180,000-Sale Price: $170,000-Tentants in place, rented at $1290/mo-historical 1% vacancy

Nice covered front porch, open living rm to dinning rm, turn the basement into more living space, work shop, or just extra storage, detached garage works for multiple purposes.