@Dan FisherThe Solo 401k is a more powerful retirement plan than a SEP and will provide you with full ability to self-administer.  

I am primarily interested in buy and hold investing and prefer to focus in a midwest market to maximize my buying power and cash flow.

Make sure you check out the keyword tool, you can create a list of keywords and get alerts for when other BP members are discussing those topics.

If they don't like my prices, they could switch to the "2 guys with truck and tools".

You can also check some of the free guides under the education tab and also there are some deal calculators under the tools tab.As @Eric Dowling said don't be afraid to post info you have about the deal.

I doubt she reviewed my offer, however, perhaps they had a power of attorney.

There is a ton of great info and tools to get you REI ramped up. best of luck and if you have any questions, feel free to message me.

I would definitely recommend that you check out the deal analyzer under the tools section to make sure you are running your numbers right on your first deal.

I'm currently in the process of purchasing a vacant lot from a family member.The lot is located in a residential area with access to power.

Welcome @Darryle Nowell BP is a great tool to get educated and meet like minded folks.