I oversaw and paid for all the renovations and after we sold the house I got my money plus profit and my wife's mom was able to pay off the mortgage and still have a healthy profit.

If you offered them enough to cover their mortgage and closing costs, I am sure they would feel relief.

Partnered with another LLC not on mortgage.

I agree with @Jay Hinrichs that private lending is an awesome way to make money in a retirement account. 

But I also see a bunch of private rooms offered in the suggested ones below Tony's other bedrooms. 

I am new to private placement.

I have turned to a few private lenders some have considered the idea but the fact that they don't do business in Puerto Rico hinges my efforts. 

They use these savings as a down payment for their first property.House Hacking: House hacking involves purchasing a property, living in one unit, and renting out the others to cover the mortgage.

It all depends upon the total cost of construction, based on that your monthly fixed cost/mortgage will come into picture.You cannot rent too far from market rate, essentially you should have some spread between mortgage(construction cost) and rent to cover for cashflow, vacancy etc.I would suggest you to keep the selling it out as your second exit strategy if renting is your first one. in that case your construction cost + selling cost cannot be more than market price of new construction.You can also try to reach out to developers to give them a piece of the pie but then you will have to sell for sure.

Id like to find private investors to invest into more real estate!