It can certainly be done, but I'd recommend having a solid contractor on your team and holding a fair amount in reserves. 

What would you recommend when I finally do begun to build my network?

I highly recommend listing to @Dave Meyer's most recent on the market podcast! 

Or I would recommend looking at out of state investing. 

I have a great Mortgage Lender tailored to Investments I can recommend for you here in Houston if you want to PM me! 

In the last 18 months various states have instituted new rules, regulations or laws related to (1) need for licensure to wholesale (2) restrictions on marketing of a property in which you do not have ownership and (3) disclosure requirements when dealing with a homeowner that makes it clear to the homeowner that the contact signed with the wholesaler is not a definitive “sales” contract, therefore making it less likely home owners will sign4.

I recently joined the forum and would like to quickly list my requirements without much ado.1.

Using a HELOC for the down payment on the second home might be an option, but lenders may require you to wait a few months post-closing on the multi-family before approving new loans.The BRRRR-style approach could work if you can renovate and refinance quickly, but make sure the timeline aligns with your lender’s requirements.

I’d love to hear any tips or strategies that have worked well for you in real estate marketing, especially with PPC campaigns.For those who’ve done this successfully, are there specific keywords, ad placements, or campaign types that you recommend?

@Max Briggs I would recommend checking out the landlord resources tab on BiggerPockets.