Problem searching for a date using stored procedure

 
CREATE PROCEDURE [dbo].[usp_Forms_GetSearchResults] 
@surname varchar(100),
@outletid int,
@formtype int,
@lodgementdate datetime,
@assignedto varchar(50),
@formstatus varchar(10),
@userID varchar(8)
AS
declare @sqlstr varchar(1999) 
select @sqlstr = 'Select * From tblFormsManagement where 1=1'
if @surname<>''
begin
if patindex('%*%',@surname)>0
select @sqlstr = @sqlstr + ' and tblFormsManagement.ClientLName like ''' + replace(@surname,'*','') + '%'''
else
select @sqlstr = @sqlstr + ' and tblFormsManagement.ClientLName = ''' + @surname + ''''
end
if @outletid<>0
begin
select @sqlstr = @sqlstr + ' and tblFormsManagement.OutletId = ' + convert(varchar,@outletid) 
end
if @formtype <> 0
begin
if @formtype =1
	begin
	 select @sqlstr = @sqlstr + ' and tblFormsManagement.FormType = "ClientIntakeForm"'
	end
if @formtype =2
	begin
	 select @sqlstr = @sqlstr + ' and tblFormsManagement.FormType = "ClientExitForm"'
	end 
if @formtype =3
	begin
	 select @sqlstr = @sqlstr + ' and tblFormsManagement.FormType = "DPI"'
	end
if @formtype =4
	begin
	 select @sqlstr = @sqlstr + ' and tblFormsManagement.FormType = "13Week"'
	end
if @formtype =5
	begin
	 select @sqlstr = @sqlstr + ' and tblFormsManagement.FormType = "DMICaseBase"'
	end
if @formtype =6
	begin
	 select @sqlstr = @sqlstr + ' and tblFormsManagement.FormType = "ClientSuspensionForm"'
	end
if @formtype =7
	begin
	 select @sqlstr = @sqlstr + ' and tblFormsManagement.FormType = "ReturnfromSuspensionForm"'
	end
if @formtype =8
	begin
	 select @sqlstr = @sqlstr + ' and tblFormsManagement.FormType = "ClientDetailsForm"'
	end
if @formtype =9
	begin
	 select @sqlstr = @sqlstr + ' and tblFormsManagement.FormType = "HighCost"'
	end
end
if @lodgementdate <> null
begin
if @lodgementdate<>''
begin
	select @sqlstr = @sqlstr + ' and tblFormsManagement.CreatedDate = ' + @lodgementdate
end
end
if @assignedto <> ""
begin
select @sqlstr = @sqlstr + ' and tblFormsManagement.AssignedTo = ''' + @assignedto + ''''
end
if @formstatus <> ""
begin
select @sqlstr = @sqlstr + ' and tblFormsManagement.FormStatus = ''' + @formstatus + ''''
end
execute (@sqlstr + ' Order by OutletName')
GO