switching from force:input to lightning:input causing styling and functionality errors

Question

switching from force:input to lighting:input and have run into a few errors. first, my styling is off and I'm not sure why.

here's my code for these sections-

<div class="slds-grid">
    <div class="slds-col">
        <div class="slds-wrap">
            <lightning:input name="State" value="{!v.newLLCRCase.LCR_State__c}" required="true" label="State"/>                
        </div>
    </div>
    <div class="slds-col">
        <div class="slds-wrap">
            <lightning:select name="Status" value="{!v.newLLCRCase.Status}" required="true" label="Status">
            <option value="New">New</option>
            <option value="Approved">Approved</option>
            <option value="Declined">Declined</option>
            <option value="Cancelled">Cancelled</option> </lightning:select>               
        </div>
    </div> 
</div>
<div class="slds-grid">
    <div class="slds-col">
        <div class="slds-wrap">
            <lightning:textarea name="Description" value="{!v.newLLCRCase.Description}" label="Description" />                
        </div>
    </div>
    <div class="slds-col">
        <div class="slds-wrap">
        </div>
    </div>
</div>

next, I have a lookup field to the Policy object but my code doesn't show the field at all.

<div class="slds-grid" >
    <div class="slds-col" >
        <div class="slds-wrap">
            <lightning:inputField name="PolicyNumber" value="{!v.newLLCRPP.Add_to_Contract__c}" required="true" label="Policy Number"/>                
       </div>
    </div>
    <div class="slds-col" >
        <div class="slds-wrap" >
            <lightning:input name="Product" value="{!v.newLLCRPP.Product__c}" required="true" label="Product" />                
        </div>
    </div> 
</div>

could someone help me with correct syntax to get this lookup field functioning properly?

I think trying to convert from force to lightning namespace is the root of all my problems. this line of code is located at the top of my component-

 <aura:component controller="NewLLCRCaseCtrl" implements="lightning:isUrlAddressable,flexipage:availableForAllPageTypes,forceCommunity:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,force:hasSObjectName,force:lightningQuickAction" access="global">