using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        List<CloudAppsLease> cloudAppLeaseList = new List<CloudAppsLease> {

            new CloudAppsLease {

                    CloudAppName = "Microsoft Partner Cloud Services",

                    ExternalSystemCodeId = "44",

                    LeaseName = "gffdgsdgd",

                    ProductTypeName = "MS Office 365",

                    Quantity = "1.0000000000",

                    SystemCode = "Office365",

                    SystemName = "Microsoft Cloud Services"

            },

            new CloudAppsLease {

                    CloudAppName= "Microsoft Partner Cloud Services",

                    ExternalSystemCodeId= "44",

                    LeaseName= "MS Exchange Online 1",

                    ProductTypeName= "MS Office 365",

                    Quantity= "1.0000000000",

                    SystemCode= "Office365",

                    SystemName= "Microsoft Cloud Services"  

            },

            new CloudAppsLease {

                CloudAppName = "Microsoft Partner Cloud Services",

                ExternalSystemCodeId = "44",

                LeaseName = "ms office365 enterprice E1",

                ProductTypeName = "MS Office 365",

                Quantity = "22.0000000000",

                SystemCode = "Office365",

                SystemName = "Microsoft Cloud Services" 

            }

        };

        var query = cloudAppLeaseList.Where(c => c.LeaseName == "MS Exchange Online 1").FirstOrDefault();

        if(query != null)

            Console.WriteLine(query.LeaseName);

    }

    public class CloudAppsLease

    {

        public string CloudAppName { get; set; }

        public string ProductTypeName { get; set; }

        public string LeaseName { get; set; }

        public string Quantity { get; set; }

        public string ExternalSystemCodeId { get; set; }

        public string SystemName { get; set; }

        public string SystemCode { get; set; }

    }

}