The obvious choice is the Chinese currencyReuters reports that MIT economist Simon Johnson has predicted the Chinese yuan will replace the dollar as the world’s reserve currency within the next twenty years.

How much can you afford for the purchase process and how much you have to set a side for reserves ahead of time (think a burst pipeline 2 weeks after you close on the house)Start interviewing a PM.

The federal reserve is expected to raise interest rates by the end of the year.  

Another problem that I see is that lenders will require a condo cert which will ask how many units are delinquent on the dues and what reserves the HOA has.

Also know that you must have reserves set aside for unexpected circumstances/expenses. 

If you have the funds available, $400/mo is an awesome risk-free/hassle-free return on $28k like @Orlando Spencer points out.Also, when my reserves are reduced, I tend to work harder to build them up again!  

You'll need to raise much more than that because you'll have to cover closing costs, syndication costs (remember the attorneys we talked about), any needed renovation or deferred maintenance that needs to be corrected, the first year's insurance will have to be pre-paid, utility companies will require a deposit (and for 100 units it's not a small deposit), the lender's tax and insurance escrow will have to be funded with a couple of months cushion, and you'll need capital reserves so cash flow isn't too tight. 

My fear is having something really bad happen that needs a lot of capital and my reserves wont cover.

Or you could put a statement like this in the addendum section: "Buyer reserves the right to assign the contract." 

Jon is right a bank would be the best option but you do not have enough capital for down payment plus they want to see 6 months reserves.