Answer
There is no reason to be concerned with multicollinearity.
Work Step by Step
In MINITAB, enter the Square Footage values in C1, the Bedrooms values in C2, the Baths values in C3 and the Asking Price values in C4.
Select Stat -> Basic Statistics -> Correlation
In variables enter C1 C2 C3 C4. You may deselect "Display p-values"
Click OK.
Since the correlations between Square Footage and Bedrooms, Square Footage and Baths and Bedrooms and Baths are not greater than 0.7 or less than -0.7, there is no evidence that multicollinearity exists.