Also, based on your experiences, does this seem like a wise investment for my REI goals, or am I running headlong into trouble?

No I am currently only working the Agent side of things, My goal is to start investing once I free up some money

Over the next few months my goal is to learn more about financing options, how to target opportunities that check all of my boxes, and recommendations from investors whose rationale is buying and holding properties.

Our first goal is to invest in a multi family and house hack for at least a year, probably using FHA loan if possible.What better way to really get involved and committed than having to actually live with/in my first investment.

-In this area is it common for the land lord to pay for 'sewer' or is it the tenant?

A seller financed (SF) note is not the same as a purchase money mortgage, it is funded by equity based on an agreed sale price, this makes it an installment loan and a different animal than a cash funded note.Institutional notes have a due on sale clause, an SF note should have if it is common for your jurisdiction but it may not have.

@Jacob Real - good intention but need to narrow it down and define your goals.

At the age 24 I had acquired and ran my own restaurant but I am now real estate investing full time.I am opportunist, seeking deals daily.Real estate ExperienceGrowing up in family who owned several multi family propertiesI have taken many courses to enrich my Real Estate platform.Created a Rent to Own CompanyWithin the past eight months I have done 15 JV deals - 22 doorsReal Estate GoalsMy real estate goal for this year, it to acquire 20 more doors by December.Currently seekingSeeking Qualified JV partners for multi-unit cash flowing rental properties.Private lenders or Hard money lenders, who will lend to Canadians to puchrase properties in the States. 

My goal is to buy a few homes and have rental income flowing in. 

The most common general answer I've received is keep it simple while your small.