Luckily the flooring was pretty level and secure and this did not pose as a problem.We moved around the closets in the extended room so we could completely close off the passthrough.

Do you have direct experience with this method?

Since my security deposit has not been paid out the outgoing tenants yet, I evaluate if this is something they caused. 

You and your new wife should move into the in-law suite for a year or so and rent out the larger portion to save more money.As for other methods other methods to get started there are loan sharks, rob a bank, sell drugs.

Now still have 64K left which planning on using to secure 2 to 3 additional properties. 

With increased security checks and immigration issues in the United States, what do I need to tell the border officers when I cross the border (by car)? 

I think I need to do more networking and try some of the other methods BP recommends to find deals before they hit the market.

IMO the BRRR or buy and hold method is a lot more forgiving. 

This way, 1) if they are not caring after their pets the way they are supposed to - you charge them for the damages in real time versus at the end of their lease term (hoping there's enough in the security deposit) and 2) you're not surprised when they finally do turn over keys.Good luck! 

The con would be that it's a dying method of residency.