If he asks for a dd, hat can i do to safeguard myself in case any liens show up.

If I wanted to safeguard some savings from the Stock Market,  I'd buy the note and get 8 percent interest from me (lol).  

I'd love to hear how to safeguard against risk of non-paying tenants with the idea that pandemics/eviction moratoriums can happen.

What safeguards do you put in place for potential default from your partner?

It's the safeguard that allows for long-term success.Steph Curry's Three-Pointers: Investing in real estate is like Steph Curry's accuracy from beyond the arc.

I would like to know what are main safe guards which 50/50 LLC partnerships typically put into place.Lets say all goes well and then an unforeseen event occurs to one partner...1.

A partnership is fine at the start, However, You will really need to call the Texas Secretary of State and verify for yourself, Do not gamble on the Info you get on the internet,  Secondly, You need to safe guard your personal assets, Meaning you need to be at least an LLC, just in case things do not work out, If you are an LLC, and you have financial problems at any point, The LLC will protect you. 

There are safeguards in place, like the 100 year assured water supply for new subdivisions like what @Doug McVinua mentioned.

Public health experts have also emphasized that the potential benefit of wearing a face covering is not for your own protection but to safeguard others around you.

I can vote for representatives whom I believe will try to create a better society, and who will put in safeguards that hopefully minimize waste, fraud and abuse.