If any one part of that equation is missing, then I am out.

This was around Villanova University and houses there have guests houses that are huge. but this little patch of houses looked pretty sketchy.

The response I got from the agent representing the landlord was curt, suggesting that the LL was 'not pleased' with our diligence.Am I missing something here?

Miss those days (sometimes!)...

Whenever my agent sends anything to the listing agent, the listing agent seems to always need "one more thing" or something is "always wrong or missing".

For example it's fashionable here to do small patches of the green grass in the front with lots of low water plants around it.

AD VALOREM TAXES--REDEMPTION OF LAND SOLD FOR TAXES Miss.

I'm saving money right now, but I don't want to wait and miss out on this house, if I can come to terms with the owner.

With this said your real problem is how could you have missed $15,000.  

I would like to make the deposit two weeks from the time of the agreement.We do understand that the proposed purchased price might me lower than you had originally planned, but we want you to take into consideration the following:We have held a lease with you for over a year, and during that time we have never missed a payment and always made our payments on a timely manner; therefore proving that we will continue to do the same specially now that it will be towards accomplishing our life dream of owning our first home.