Implementing MVVM with ArcGIS Runtime local server

I am trying to setup a ESRI Local Server for displaying .mpk. I have a Model like

public class Model
{
    private string basemapLayerUri = "http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer";
    private string mapPackage = "D:\\App\\Data\\Canada.mpk";
    public Model() { }

    public string BasemapLayerUri
    {
        get { return this.basemapLayerUri; }
        set
        {
            if (value != this.basemapLayerUri)
            {
                this.basemapLayerUri = value;
            }
        }
    }

    public string MapPackage
    {
        get { return this.mapPackage; }
        set
        {
            if (value != this.mapPackage)
            {
                this.mapPackage = value;
            }
        }
    }
}

in ViewModel.cs Class I have

public class ViewModel : INotifyPropertyChanged
{
    public Model myModel { get; set; }

    public event PropertyChangedEventHandler PropertyChanged;

    public ViewModel()
    {
        myModel = new Model();
        this.CreateLocalServiceAndDynamicLayer();
    }

    public string BasemapUri
    {
        get { return myModel.BasemapLayerUri; }
        set
        {
            this.myModel.BasemapLayerUri = value;
            OnPropertyChanged("BasemapUri");
        }
    }

    public async void CreateLocalServiceAndDynamicLayer()
    {
        LocalMapService localMapService = new LocalMapService(this.MAPKMap);
        await localMapService.StartAsync();

        ArcGISDynamicMapServiceLayer arcGISDynamicMapServiceLayer = new ArcGISDynamicMapServiceLayer()
        {
            ID = "mpklayer",
            ServiceUri = localMapService.UrlMapService,
        };

        //myModel.Map.Layers.Add(arcGISDynamicMapServiceLayer);
    }

    public string MAPKMap
    {
        get { return myModel.MapPackage; }
        set
        {
            this.myModel.MapPackage = value;
            OnPropertyChanged("MAPKMap");
        }
    }

    protected void OnPropertyChanged([CallerMemberName] string member = "")
    {
        var eventHandler = PropertyChanged;
        if (eventHandler != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(member));
        }
    }
}

As you can see I am trying to implement the local server and dynamic layer in ViewModel.cs like

public async void CreateLocalServiceAndDynamicLayer()
{
    LocalMapService localMapService = new LocalMapService(this.MAPKMap);
    await localMapService.StartAsync();

    ArcGISDynamicMapServiceLayer arcGISDynamicMapServiceLayer = new ArcGISDynamicMapServiceLayer()
    {
        ID = "mpklayer",
        ServiceUri = localMapService.UrlMapService,
    };

    //myModel.Map.Layers.Add(arcGISDynamicMapServiceLayer);
}

but I do not know how to bind this service to the Model ? I tried

myModel.Map.Layers.Add(arcGISDynamicMapServiceLayer);

but as you know the myModel doesn't have any Map object.

Update

using M_PK2.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using Esri.ArcGISRuntime.LocalServices;
using Esri.ArcGISRuntime.Controls;
using Esri.ArcGISRuntime.Layers;

namespace M_PK2.ViewModels
{
    class ViewModel : ViewModelBase
    {
        private readonly LocalMapService localMapService;
        private readonly Model myModel;
        private LayerCollection layers;

        public ViewModel()
        {
            myModel = new Model();
            layers = new LayerCollection();
            localMapService = new LocalMapService(myModel.MapPackage);
            starting += onStarting;
            starting(this, EventArgs.Empty);
        }

        private event EventHandler starting = delegate { };
        private async void onStarting(object sender, EventArgs args)
        {
            starting -= onStarting; //optional

            // the following runs on background thread
            await localMapService.StartAsync();

            // returned to the UI thread

            var serviceLayer = new ArcGISDynamicMapServiceLayer()
            {
                ID = "mpklayer",
                ServiceUri = localMapService.UrlMapService,
            };

            Layers.Add(serviceLayer);
            OnPropertyChanged(nameof(Layers)); //Notify UI
        }


        public LayerCollection Layers
        {
            get
            {
                return layers;
            }
        }
    }
    public class ViewModelBase : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged = delegate { };

        protected void OnPropertyChanged([CallerMemberName] string member = "")
        {
            PropertyChanged(this, new PropertyChangedEventArgs(member));
        }
    }
}