SalesPointResolver newSalesPointResolver = new SalesPointResolver(returnReservationUrl, reservationSite.ReservationUrl, startDate, endDate, officeCode);


        Mapper.CreateMap<Models.Custom.House, DTO.House>()
            .ForMember(dest => dest.Id, opt => opt.MapFrom(src => src.Id))
            .ForMember(dest => dest.TaxIncluded,
                       opt => opt.MapFrom(src => src.Segments.FirstOrDefault().TaxIncluded))
            .ForMember(dest => dest.TaxPercentage,
                       opt => opt.MapFrom(src => src.Segments.FirstOrDefault().TaxPercentage))

            .ForMember(dest => dest.SalesPoints,
                       opt =>
                       opt.ResolveUsing(newSalesPointResolver))
            ;

[Log]
public class SalesPointResolver : ValueResolver<Models.Custom.House, IList<DTO.SalesPoint>>
{
    private readonly ILog log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

     private string urlTemplate;

    public SalesPointResolver (bool returnReservationUrl, string urlTemplate, DateTime startDate, DateTime endDate, string officeCode)
    {

        this.urlTemplate = urlTemplate;

        log.Error("passed in " + urlTemplate); // THIS IS PERFECT
        log.Error("I am now " + this.urlTemplate); // THIS IS PERFECT
    }

    protected override IList<DTO.SalesPoint> ResolveCore(House source)
    {

        this.house = source;

        log.Error("in  resolveCore :" + this.urlTemplate); // THIS IS RETURNING THE WRONG VALUE

Mapper.CreateMap<Dto.Ticket, Entities.Ticket>()

var configuration = new Configuration(new TypeMapFactory(), MapperRegistry.AllMappers());
var mapper = new MappingEngine(configuration);
configuration.CreateMap<Dto.Ticket, Entities.Ticket>()