How can I close this deal?

[Deborah R.]

So, I'm interested in buying a property; seller seems interested but would like to close in the next 3 months.  I would need a total of more than $90k to close with 25% down conventional mortgage. Our cash reserves are around $20k right now after using much of them up for another property.  I could refinance a property and get at least $40k out.  We have higher income; so, we should be able to set aside $5-10k between now and then.  But that still doesn't get me all the way to the amount needed.  

Any other ideas you can think of?   Would there be a way to sign a contract to buy... I rent the right to lease until we actually close?  

Otherwise, I'm just going to tell the seller that I could buy in the spring after I have more time to rebuild cash reserves.   

Thanks for your time and advice!