MVC 5, Using Checkbox for same model property twice in a page but inside different forms - asp.net-mvc

Question

Model property which I intend to use inside two forms
public class TestModel
{
[Display(Name = "Terms Accepted")]
[Range(typeof(bool), "true", "true", ErrorMessage = "You need to accept terms and conditions to proceed!")]
public bool TermsAccepted { get; set; }
}
view Page
<form id="form1">
<div class="row">
<div class="col-md-3">
#Html.CheckBoxFor(m => m.TermsAccepted) I accept terms and conditions
#Html.ValidationMessageFor(m => m.TermsAccepted, new { #id = "chk1" })
</div>
<div class="col-md-3">
<input type="submit" id="button1" onclick="return isFormValid('form1');" value="Submit Form 1"/>
</div>
</div>
</form>
<form id="form2">
<div class="row">
<div class="col-md-3">
#Html.CheckBoxFor(m => m.TermsAccepted, new { #id = "chk2" }) I accept terms and conditions
#Html.ValidationMessageFor(m => m.TermsAccepted)
</div>
<div class="col-md-3">
<input type="submit" id="button2" onclick="return isFormValid('form2');" value="Submit Form 2"/>
</div>
</div>
</form>
When this UI is rendered on the page, checkbox inside the 1st form do contains attributes for RangeDataAnnotation while checkbox inside 2nd form doesn't have any attributes for data annotation. So this results into 2nd form doesn't throw any validation on submission.
Html of checkboxes which get rendered on UI
Inside form 1:
<input name="TermsAccepted" class="input-validation-error" id="chk1" aria-describedby="TermsAccepted-error" type="checkbox" value="true" data-val="true" data-val-range-min="True" data-val-range-max="True" data-val-range="You need to accept terms and conditions to proceed!">
Inside form 2:
<input name="TermsAccepted" id="chk2" type="checkbox" value="true">
Any suggestions to make this work in both forms?