The differences in bed/bath counts actually do not matter that much, but typically sqft does.If you are off by even $100/mo per unit rent-wise, this could turn an 8% CoC return into a 3% CoC return instantly - in which case you'd have been better off just putting your money in the S&P500 and not a rental property.

Use their market analysis tool to sort by properties similar to yours (#bed/baths, SF, location, amenities, etc.) and look through specific listings to find ones VERY similar to yours.

Get as many heads in beds as you can!  

Increasing the market rent for a 3 bed split level home by $700 monthly, rented in less than a week with multiple interested parties Lessons learned?

@Allen Moore In New York City, section 8 is awful, the tenants play the system masterfully and the courts are in bed with the city.

Less than a year after I took this picture (which I printed out and hung up on my bathroom mirror so I could see it every night before bed, and then see the real thing at the gym every morning), I quit my job and have never worn a shirt and tie since.

Avid listener, and finally found a good opportunity to buy a Bed and Breakfast in my city of New Orleans.

Mortgage on my current home (4 bed, 1.5 bath, on roughly an acre, in a quiet neighborhood) is $1445 and the idea would be to rent it out for $2000ish plus all utilities depending on the rental market this time next year but currently that's pretty close to where it would be. 

If you tell a wholesaler the zip code, the SF, the bed/bath and condition they should have a ballpark in their head instantly.

Purchase price: $340,000 Cash invested: $7,000 Water front, 4 bed, 2 bath, detached 1 car garage, pier and dock.