It can be prevented by keeping closet doors open and using a ceiling fan to circulate air, opening doors and windows for 5-10 minutes a day (as weather permits) to sweep out excess moisture, use ventilation fans in bathrooms, and keep the property free from dust.Check out this EPA resource.

And yes, it requires gas and electric too, just when using a normal thermostat you are cutting down on the issues. 

I have a question on using a cash out refinance with primary residences in relation to rental property Here's my situation: I have a property that I have lived in for 2+ years in which I have a significant amount of equity due to appreciation that I am interested in turning into a rental property.

I'm not happy with the house so I decided to convert this house into a rental and buy a new house for my primary residence, using a different broker/agent.   

I can't tell for sure but if you are using a realtor this is the party to rely on with your transaction more than anything. 

I have used both with limited success, I get better results for less money by using a VA from overseas, and doing good SEO work on my websites.   

If the area is 95% SF then using a recent sold multiplex in the same area will be difficult.My view is that the property is somewhat unique and that the comps will not be that good and will need a lot of tweaking to provide an appraisal. 

Many homes need repairs to be marketable, you can partner with the owner using a TIC, make the repairs, pay them their agreed price and sell for the profit, all  you do up front is pay some closing costs and costs of repairs. 

If you will be using a transactional lender to close your deal, you can get one off of their website.

Using a binder for those same better quality tenants does the exact same thing for them, but covers you in case they decide they don't want to move in.