You will want to consult with a lawyer.In regards to your last two questions here's some background on what makes a contract valid and enforceable:Offer: A promise to do or not do something within a certain time period Acceptance: A clear and direct statement that all terms and responsibilities are accepted Consideration: A legal and adequate inducement given in exchange for the promise Capacity: The parties to the contract must have the legal capacity and competency to contract Awareness: A party must be aware of the contract Legality: The contract must be legal in the jurisdiction it will be operating in***Not legal advice*** Steps I would take: -Review contract in detail to understand each counterparties responsibilities (if you are not aware)- Email a copy of the lease to each of the tenants listed on the lease and reiterate lease expectations for termination notice, rent payment etc. - If the lease was signed via Docusign (other esign may have same ability) - you can go to the envelope, go to history and view the IP addresses for each action taken.

Are there other legal or financial consequences I should be aware of?

If you go this route, be aware that you’ll lose payroll deductions—so you’ll have to track contributions on your own (see IRS Publication 969 for HSA rules).2.If You Own a BusinessIf you’re running an LLC or S-corp, you might be able to fund an HSA through that payroll.

Any legal issues I should be aware of in this situation? 

Buyer go to open house directly.We have this option in Minnesota now, and it looks like in 10 other states that I am aware of (California, Texas, Florida, Virginia, mostly the big population states).

Is anyone else aware of reasonable alternatives?

Question 1: I’m aware of Reno 203k loan and Fannie Mae home style construction loan.

Anything I need to be aware of or make sure they do for my protection?

It could be that the decision makers were not aware of the ceiling on your budget.

I was aware of the egress requirement, but was not considering the door size or ceiling heights.