Good Morning and Welcome to the Forum! You found a good one!
Please describe Make and Model of the RV and of the Chassis that it's on. The chassis' wheelbase if you know it, and how many miles on the clock.
Since you posted in Class C and the majority of Class are on Ford E350 or E450 chassis, our best guess is that's what you have. If that's true, they're better known for vagueness than tightness when it comes to steering.
Here's a Quick-Hitter: Check the Tire Pressures. If this is a Ford, you NEVER need more than 65-PSI in the Front Tires, and probably Less. If somebody looked at the sidewalls and saw "max load of xyz pounds at 80-PSI" and aired the Fronts to 80, that's a big problem. That much pressure reduces the tread's contact patch (where it meets the road) to about the size of your foot. 80 in the rears will make it ride harder if you can do with less but won't make for vague driving. Just make sure all four are at the same pressure. Just start at 75 or 80. But make sure Front's not over 65!
Sure it could need work, but please gather the information, check the tire pressures, and get back to us.
