Another route you can take is using hard/private money on a cosmetic flip using the BRRRR strategy.

If not, then don't spend the money.

*Tracking my time and the items from "Money for Tomorrow".Thank you for all and any assistance

Wholesalers will send you properties that fit your buy box, and you can work directly with them and a hard money lender to get the deal closed. 

If that's the case, at what point can you save money on the build?

You only pay on it if you withdraw the money.

Sending you a dm, let's see how we can work together.I help new investors by (1) showing them the different avenues of investing, (2) teaching different methods on how people can use money that is already in their home, (3) showing how some HOA's can benefit in renting, and (4) refer them to this forum to educate themselves deeper as they start.

Yes you can sell it, you will need to record the land contract with the county to show your equitable interest and make sure in the land contract it gives the ability to sell the property for more than the loan amount and the current owner will oblige to execute the documents as part of receiving the money.

If you can't pay the 50k back at 30% interest, the money partners stays your 50% partner indefinitely? 

Apply any money paid first to the bill, then to rent.