Thank you @Arjan Amiri Believe it or not, I actually found this house on the MLS on a public site that anyone can see. In the listing remarks for the public, the listing agent had written "seller finance available." Since the house was exactly the type of house I had been looking for my growing family, I attended the one and only public open house the agent held when it hit the market, and then called her immediately afterward, since the house fit all my criteria and then some.
At the time, I was in the process of waiting for my VA real estate license to get processed so disclosed that I was an agent. Negotiations took about 5 days. When we finally came to an agreement, listing agent wrote up the contract with me as an unrepresented buyer since my license was still pending.
In the end, I think the seller financing was a strong selling point - I did the math and showed the seller how much more he would make in interest if he financed the deal over 5 years (around $80k!!) Plus I also explained the tax benefits of spreading out the sale, as well as the fact that he would continue to get a fixed monthly payment without all the headaches of being a landlord or paying increasing property taxes. That made my offer a lot more interesting than others' using conventional financing.
In the end, I was able to negotiate a significant chunk of the buyer's agent commission off list price, so he ended up with a better net price and I also ended up getting a $10k discount off the list price, which was already extremely competitive. And all this in a hot hot hot market! Knowledge is power. If you know your numbers and focus on why your deal is better for the seller AND the agent, you can get it done.
I also say agent, because I followed up with the listing agent daily so she knew I was a serious buyer who could close. I also emphasized that I could close the sale faster than others with conventional financing. After all, since we are not using a bank, we don't need to wait for underwriting to give the ok after 30 days or wondering whether or not the property will appraise. If all goes well, we should go to settlement in less than 2 weeks.
As for choosing the attorney, since I did not find any fellow investors who had any recommendations, I just did a web search, specifically looked for a local attorney specializing in real estate transactions and called around. I think you can get a good sense of people by talking to them, and the attorney I chose was very helpful in that initial phone call - giving me solid advice for free on how I should proceed. He did not try to sell me on why he should do the transaction. So far, he has been great.