Remind them of that when you are presenting your final offer.If they balk,walk out on them and let time eat at them a little and then give them a hard deadline to accept the deal.Never let a seller know how much you really want the property.Make them really want to sell it to you.

The money from the hard money lender was not going to be available in time to meet the seller's deadline (I'd already paid him $500 for a two-week extension), so I cashed in my IRA and borrowed money from my parents to buy the house.

The numbers sound tight but that may work.  

Houston is a little tight but there are still some good opportunities available.

I work in sales and have a fairly flexible schedule, however money gets tight sometimes and I do not know where to find the proper funding for this.

Money is tight I don't have the 30% to put down and New York is a real sellers market.

@Philippe Laurin This week is a little too tight.

Typically this is the responder, someone who is in a tight spot and might overlook the impersonal and unprofessional nature of the YL.  

The margins are way too tight.

I think some states are tight.