You are not doing yourself any favors.
Just like an Attorney representing himself, a fool for a client.
I'd rather be an educated fool than an ignorant one. As I said, we will hire an architect and professional contractor to build out the space. But I'm a firm believer in knowing as much as I can instead of just relying on others to make decisions for me.
Since you raised the topic of an attorney representing himself, I'll share a little story...
Years ago, I was sued by a former business partner who wanted to renege on a deal we had both agreed to. I had agreed to take some excess inventory she had been unable to sell, and liquidate it on commission; after the sale, I was to pay her a percentage of the net. She had planned to simply throw it all away and she didn't expect me to get much, if anything, for it. After some months of work, I sold the lot for over $100K. Suddenly, she decided she wanted ALL the money from the sale. As in, she wanted to take 100% and leave me with zero. After I paid her the agreed percentage, she filed a lawsuit alleging I had stolen the merchandise from her and sold it without her consent. I retained a "respected" local law firm and paid a hefty retainer. Instead of filing a motion to have the case dismissed, the lawyer "answered" the suit (which basically told the court that the suit was valid, but that we would contest it). After the law firm burned through $10K of my money doing nothing but filing some paperwork and showing up for a couple of administrative hearings, I had had enough. I went to the local law library and spend many hours learning the law. I discovered that a demurrer could have been filed to have the lawsuit tossed out from the start without going through months of discovery and litigation (and hundreds of thousands in legal fees). Surely, the lawyer must have know this. But litigation is big money. So I fired my attorney and represented myself in court. And I prevailed in just two hearings: I got the lawsuit dismissed. Nightmare ended. True story.
Not bad for a fool client, eh?
Edit: The purpose for relaying this story was not to brag or pat myself on the back. Frankly, it was a miserable experience that caused me great angst and loss of time and money over the course of a year. But the point I was trying to make is that it's not always wise to blindly trust the "licensed professional." The more you know, the better you can assist in the process when you have a good guy on your side, and the better you can protect yourself when you have a bad guy.