You are being played like a fiddle.

You can shoot the video wearing blue gloves, a bandana, or mask too to play it safe.

Next option was a mobile home..I only have 50k to play with, I have thought about various things, but 50k won't get far in the commercial world.. 

If they are struggling or need help then figure out a solution of a rental decrease. 3 months is a lot of time to see how the situation plays out.

I never recommend people play the S-Corp game until they're doing regular deals.

Just play cool with them so they don't try to stiff you on rent.  

Smaller single resource towns are a riskier play.

Investing in Northern NJ and hitting financial targets often posted on BP is challenging and in some instances impossible, that being said I wont talk numbers here as you deemed them good enough to put the deal in play.

During this process we spec all finishes/fixtures/scope of work, and then provide a final "guaranteed" budget that will only change if hidden conditions arise (code/safety-related), scope of work changes (additional work added above the defined scope), or fixtures/finishes change (price will go up or down, based on the new selection and any re-work necessary).I strongly recommend you find someone with a similar process, who also freely offers up proof of licensing, insurance, 3-party reviews, and client references you can contact.Finally, if it's a long term play and you don't mind spending the money, consider the "phased" approach mentioned by @Nabil Suleiman.

Also, unless you have a ton of capital and you are playing long-term appreciation, then you need a decent ROI.