Your best bet is to find your local REIA, which you can search for on nationalreia.org. 

I'm going to bet that they either blocked or closed the vents in the  master bedroom and there isn't really a problem.Explain to them that you need to get it looked at and if they are not going to organize it, then you are taking matters into your own hand and doing it. 

Your best bet if you want to know that is calling the Section 8 Housing Assistant assigned to your tenant and asking, they may be able to calculate what it would look like.

Johnny, I know exactly which lender your working with.I am going to tell you, there are better options.Look around a bit, That prepay is 5% fixed for 3 years.I wouldn't pay 22k to buy a rate down in a decreasing rate environment.A 7.75% on a 3,2,1 declining prepayment is a better bet. 

Another solid read is "The Millionaire Real Estate Investor" by Gary Keller, which focuses more specifically on real estate strategies.For podcasts, BiggerPockets is extremely popular and a fantastic resource, especially for beginners.

Best bet is to come here and see how things are.

This strategy has gained popularity because of its potential for building wealth through real estate.

Just like @Jason Wray said, finding a good agent or already knowing one is your best bet.

I really see Columbus Ohio as an extremely safe bet for the next 10-20 years.

So even popular rent estimate tools seem a little inflated unless you're outpeforming the competition with what youre offering.