If you do end up selling it as a business investment adding $300 a month to the cash flow would have a large impact on what it could sell for.

Just curious what the costs would range (assuming no asbestos or other major environmental hazard)?

I am not sure if Google will have another campus ro continue to build where they are at.IIRC, there were 4 states that had minimal impact on the last recession - TX, OK, LA, and NM.  

I don't think siding will have any impact on how much you can charge for rent.  

As others have mentioned, areas such as Midland, Odessa, or anywhere in the Eagleford Shale region will be majorly impacted because a large percentage of those employed there are in Oil and Gas. 

You've got to discover the financial impact or economic value of the problem.

Some people may be okay with that risk as long as it doesn't negatively impact their IRR.  

After they are in the name of the LLC, will this impact the cost or availability of homeowner's insurance?

This UDFI is a subset of UBIT (unrelated business income tax) and documented in IRS Publication 598.Confer with your licensed tax advisor for specific details.The general guideline is that the impact of such taxation on the operating income from rents is usually pretty low.  

As stated, it's very rare to get a loan that is longer than 15 years, from any lender, and you've done well to get that much.Generally, the longer the term of the loan the higher the rate since the lender is going to build in a buffer to compensate for market fluctuations. 15 years is a long time in the commercial space.Grated, a higher rate isn't going to have a dramatic impact on a small loan so the upside to you knowing that you have a long-term fixed rate may be worth it.