Give proper legal notice of non-renewal and get them both out.

I could not find e1031xchange as a business entity in the State of New York (https://apps.dos.ny.gov/public...).

I think it would require a major asset heavy backer to provide the confidence the investing public needs to scale to profitability.  

No off-street parking = not worth doing MTR unless it meets all of the following: super urban area where no parking is the norm, highly desirable area with a ton of MTR demand, super safe part of the city, and has great public transportation (think NYC, Hoboken NJ, etc.)Unless it meets all of the criteria above, I pass on those opportunities because my MTR will be eliminating the many people that travel with their vehicles.

However, non-government employers on average last less than 20 years.

What is the most important factors when considering passive (or even non-passive) real estate opportunities?

This is probably the number 3 fear after public speaking and death. 

This is now open to non-accredited investors (as well as accredited) for as little as $100. 

One big one is that scaling the lease option sale to a homeowner will attract both public regulatory scrutiny and private litigation, perhaps class action, once it reaches a certain threshold.  

Id say 100% of my evictions are "no money back, get out now, see you in court, get my judgement, place it on public record."