I'd probably pay a weekly or monthly amount with clear expectations of hours and responsibilities.Paying per call, or by deal sounds needlessly complicated to track and a barrier to finding someone good.

If you decide that using an LLC is too complicated or risky, you can always unwind the LLC and use a traditional custodial model to purchase your property directly with an SDIRA.

Did they use their own techniques to become wealthy ?

If I spend 1500 on a course, I anticipate that the technique contained will make me at least 3000.  

There are some more complicated details to other occupancy situations: http://www.military.com/money/va-loans/8-keys-to-u...It probably would depend on the repair time frame for the best strategy for renting the units out. 

Call all of these, ask if they are SFR or not, if not, ask if he would be willing to sell.It will take some effort but when you find a multi-unit with any of these techniques, then you have a potential seller who is ripe for a creative financing offer.

Its not a complicated formula.

One technique they taught us was the Sandwich lease.

No need to further complicate it.Feel free to post other questions, there are several Canadian investors, flippers and real estate professionals investing both here at home, in the U.S.A. and elsewhere who can provide you with some of their experience.

California, Hawaii, Hong Kong, Singapore, Melbourne, Sydney, London capital appreciation isn't that hard to spot or compute if you know the market.Personally, I don't see capital appreciation to be more or less complicated to compute than rent appreciation.