[mistamca]

Thanks, but the SBA is balking at the use of funds.

Well that's the broker's job to educate the client on how to structure the proceeds to the bank and manage expectations to the client. Unsecured real estate loan does not exist.
If they are looking for some of the proceeds to be used for RE, then I would assume that it would be for a medical office.

You can easily wrap that request under a 7(a) and they would be able to acquire the RE with no money down.

If you bank does not like working capital loans ( most don't ) then a vague proceeds of capital is always going to get turned down.