Thanks to all the replies on this. I tried to insert everyone's names, but it doesn't show up highlighted, making me think I'm doing something wrong...
Lots of good info, and David Willis from Texas is actually the attorney I was using. The issue I had was that apparently it's common for a lot of the note contracts to state they May call the note due if it is assumed or an interest in the property is sold without lender approval of the buyer's credit, but mine says they Shall call it due - a big enough difference for me that I don't care to risk it.
Apparently, you can still do a lease option in Texas, but under 180 days, or there are a lot of restrictions and requirements. I'm leaning towards doing this with a healthy down payment, plus a monthly rent that puts about $450/mo in my pocket. I already explained to the buyer that if we proceed with this the rent gives him $0 interest in the property - it is simply rent, and not much more than the going rent in that area. Also, the down is partially a refundable rental deposit, and part of it is a non-refundable option payment.
Looks like I'll still get my money in about six+ months, but I was planning on using the profits for a large (for me) renovation I'm doing in Ft Worth. So much for the best laid plans... Regardless, I'm pretty conservative and this extra money was my safety reserve. Once my renovation is done come December, I'm interested in putting the proceeds into multi-family - so, there will be many more questions at that time. lol
Thanks for all the quick advice. I appreciate the help, and I'm grateful for the many people on this site that are quick to share their knowledge and opinions.
-Dean R. Weltman