I am so happy for you for jumping in and snagging foreclosures.

Is it true that marketing and advertising to find motivated sellers could be thousands of dollars a month?

I haven't joined MAREI yet, but I've been to one of their meetings and found it useful.

And, know this: what you don't know will hurt you. 

There are limited exemptions such as if you inherited the property where it would be allowed.There are technical means to navigate the 90 day rule but your best bet by far is to talk to the lender and let them know the situation and ask for their direct guidance.  

Before you get too far, get with the city/county and make sure everything is copacetic. 

You might find the answers to your questions there but I know that the search function is less then optimal so feel free to send me a DM if you don't easily find what you're looking for.I've never bothered commenting much about Canada because, until recently, it made no sense for US investors to invest in Canada: much less favorable mortgage conditions if they could even get one, much more expensive prices on average and much less profitable on average.

Awesome stuff Matthew, looking forward to seeing you on here and maybe in the future we can work together. 

Hello, I am new to the BiggerPockets forum and looking to purchase my first investment property this year.

I'd say start the process of securing your HELOC if you havn't done so and spend time analyzing deals and determining what type of investor you are looking to be.