These are professionals with additional training and a stricter code of ethics.

Additionally, I would suggest you run some financial calculations such as cash on cash return as well as any appreciation from the asset if/when you sell.

In addition to cheaper prices through Minoan, they set up a site for your property with affiliate links in it. 

So, if you put in 20K, you could set the bid up to the amount of the 100K total debt(80K existing + 20K additional) to ensure that the property reverts to you as the lender.

Additionally, confirm the transfer won’t lead to property reassessment, which could increase taxes.

I was interested in something like owning a rental property as a way to generate some additional income. 

Additionally, another neighbor who owns an adjacent parcel has expressed interest in joining the project, contributing their land to the development as well.I believe this could be a great opportunity for all of us, especially as a unique retirement plan for my family and my neighbors.

You''ll need more down and additional reserves.

Quote from @Nick Am: @Michael Plaks--> The SE taxes are STRICTLY NOT in addition. 

This reminds me of the story of a wall-street banker convincing a fisherman who already has time for his friends / family to instead scale his fisherman business(get employees, integrate, then sell the business) all of which will lead him to be able to spend time with his friends and family.It already sounds like you have a great life - spending time wth family and in great health.Having additional money doesn't sounds like it would improve your life that much.