There are a lot of books on note investing, which is essentially what you're talking about.

Using your first property as collateral could help reduce the cash you need upfront, but it’s essential to weigh the risks and it's not really recommended specially if this will be your first.I recommend focusing on building reserves or seeking partnerships to fund flips.

Essentially you are creating future tax free income by being able to roll over these losses.If your income is between $100,000 and $150,000, a portion of that $150 loss is deductible and the rest rolls forward.If your income is less than $100,000, your loss is fully deductible - and THAT's the cool thing about rental income. 

It essentially said I trusted them to give me 10%, which as is probably clear by now, they aren't really a trustworthy organization.

“Money goes where money is treated best.”Your future ability to attain and maintain financial freedom depends on the city where you invest.Investment TeamAn essential location selection criterion is an experienced local investment team.

They do not understand the paperwork and many of them are even good at selling real estate.

I am honestly quite curious about what your process would be...I would assume you need to file some paperwork with the county. 

Since the owner needs to pay your attorneys fees (essentially limited by statute, so can be estimated) in connection with a redemption, all of that math should be part of the planning.

You just file more paperwork.

With larger projects come bigger budgets, and tracking your cash flow becomes essential for profitability.