Need advice on buying first commercial property - owner occupied

[Charles Jessup]

My wife's business is expanding and she needs more space. We're considering buying a commercial office property instead of renting.  We live in the Houston, TX area.  

I have a few questions, and would love any other advice you have for us:

1. 1. Is it worth the hassle of setting up a second company to purchase the property, or should she just buy it with her original business?
2. 2. One seller is offering a lease-option.  Are those worth it?  Anything to watch out for?
3. 3. Can we get an SBA loan for this?  I've heard it's an option but also heard they only pick certain people and don't want to go through the hassle if we won't qualify.  
4. 4. Growing a business is expensive enough as it is, and coming up with a downpayment on top of that is going to be tricky.  What do you suggest if we don't quite have enough?  Are there other places we could look to borrow?  

Thanks for the help!