They used a combination of the rental income, my W2 income and my credit to qualify.  

I assume I need a CFP first to figure out the Roth conversion part and once converted then in comes CPA? 

Downpayment came from proceeds of a land flip bought at an online tax auction (**********).

To recap: Be extremely cautious with flat fee MLS sites that only refer business to other agents.Bonus PointsYou should also consider the ease of use of the flat fee MLS listing provider, for example, can you complete everything online?

is there an online platform for purchasing this?

DSCR loans are typically for income-producing properties, whereas HELOC's are used for personal expenses or home improvements.

I do not have any 1 BR STRs/MTRs but I have seen annual STR rents based on bedroom count in both my market (San Diego) and emerald coast (one of the markets I have made offers) and the difference in the income is substantial between 2 BR and 1 BR.  

You can drive around town looking for properties that looks distressed, put up signs, let your friends/family know you buy houses, look online, etc. 

I've always used my business solely to generate an income/paycheck, however I'm ready to transition and use my experience to facilitate investment opportunities.

Thoroughly research the industry, field, business you’re interested in to see if there’s a “niche”, unique approach, unserved customer base, or anything similar that can be exploited to earn income 3 standard deviations above the mean.