If the property you're evaluating has "good bones" i.e. the structure is sound, then being an old home is only a deal-breaker if the cost of updating the plumbing, electrical & mechanical is cost-prohibitive given your Return on Investment goals.

If businesses (read: Jobs) find that the cost of water is too prohibitive and they move out of state, that will definitely affect not only the population, but all assoc businesses.5.

Boulder is also considering a crackdown on AirBnB rentals and we've noticed a lot of HOAs are specifically prohibiting condo owners from renting to anyone for fewer than 90 days.

If I take on large debt will that prohibit me from taking on new debt when I acquire other properties?  

By Colorado law, there is no zoning ordinance that can prohibit the use of a factory-built, U.B.C.

IRC 4975 defines a prohibited transaction as follows:A “prohibited transaction†is defined in IRC §4975(c)(1) as any direct or indirect:a.Sale or exchange, or leasing of any property between a plan and disqualified person;b.Lending of money or other extension of credit between a plan and disqualified person;c.Furnishing of goods, services, or facilities between a plan and disqualified person;d.Transfer to, or use by, or for the benefit of, a disqualified person of the income or assets of a plan;e.Act by a disqualified person who is a fiduciary, whereby he deals with the income or assets of a plan in his own interest or for his own account; orf.Receipt of any consideration for his own personal account by any disqualified person who is a fiduciary from any party dealing with the plan in connection with a transaction involving the income or assets of the plan.Unfortunately everything you would like to do with your IRA falls within the definition of a prohibited transaction.

You certainly can't prohibit them from owning a gun so I'm not sure there's a truly perfect and practical solution.  

I believe this is a prime example of why a major tool in screening, background checks, are starting to be prohibited in some municipalities.If he's on a month-to-month lease, then end it once he ends up in jail and unable to pay you the rent.

Phoenix is not a market that is prohibitively expensive either.

update on this:    the rent control prohibition repeal ordinances (house and senate version) introduced for 2018 in the WA state legislature both failed to get out of committee.