Not sure if PA is an attorney state but in NY, attorneys issue a "time of the essence" to give interested parties a deadline by which they have to close.

I was wondering if I shouldn't just sit tight and save $4500 for say 6 months and then add the $27K to the $40K and buy a property but put $67K down so that the mortgage is low enough that the property cash flows well.

Our Canadian market (Torontonian here) is very tight and prices, as I am sure you are aware are high. 

I would not pay 450 on a 3 units even though I live and love Hampden.If house is the one on Chestnut like Sean Byrd mentioned, those units are very tight.

If that would make things a little too tight, then price that risk in.Happy investing!

I wanted to quit more than once when I would get a lead that would dissolve and not finalize, or when money started getting tight because of all the postcards and marketing that I was spending.

Cap rates right now are very very tight even assuming little to no vacancy, so you better believe in your numbers.

Give them a deadline of 72 hours to decide whether they will sign your new lease or give notice of their intent to move out.

Are you trying to get this done for 10/15 tax deadline, because that is a tight timeline, otherwise, I'm curious why you need it so soon?

Costs have gone through the roof and contractors are naming their price for labor because the market is so tight here.