@Oleg Malkin, The 1031 exchange is used to track your tax deferral with the form 8824 that your accountant files in the year of your exchange. 

Get the document notarized and file it.Regarding the due-on-sale clause.  

Here in PA a tenant isnt evicted until the day of the actual lockout but we still need to know if a landlord tenant complaint was ever filed, when it was filed, and what legal steps were taken from there.

I would want some major security deposit on file - maybe 6 months rent (personally), and / or possibly have them carry an insurance policy with you as the named insured for a descent value for any damages, etc - with the policy specifically written for the type of business they are actually running.

My husband wants to keep his Nevada state residency to file income tax there (NV doesn't have state income tax) but we would like to file jointly for federal income taxes.On the Utah State tax website it says: "A married couple who files a joint federal return may file separate Utah returns ONLY IF:one spouse is a full-year Utah resident, ANDthe other spouse is a full-year nonresident."

Will be filing a complaint with BBB

That house is an asset that perhaps could have or should have been sold to pay that debt and filing a potentially false deed after they pass away could be a way of avoiding payment of that debt.

If they refuse to pay and you installed what was quoted in a workmanlike manner then you file a mechanics lien on the property.

You will likely have a partnership for tax purposes and have to file a partnership tax return and keep business-style books.

You'll have to pay rent regardless, so you need to consider that you would already have that expense, along with the fact that you'll get the benefits of principal paydown and asset appreciation (especially by leveraging).Acquire the asset and perhaps focus on something you can add value to, then you'll have a 100-200K equity chunk to play with in a few years when the market accelerates again.