You just won't really have a ton of positive cash flow right off the bat if you are refinancing at 70-80% LTV at today's interest rates.Multi family you can get both but those are tougher on the equity side of things since they cost more to rehab compared to a single family home.

Pro: In addition to MLS access your brokerage might provide access to other resources such as detailed online assessment data not available free to the public. 

The address was submitted to their red book and now shows up online as official address when I try to ship items from Amazon or similar websites.

I keep reading different things online.

HELOCs can be used on investment properties without requiring full refinancing.

All your first set of questions can be answered by looking online or calling several local competitors.Your accounting questions though, show such a lack of basic knowledge that you probably shouldn't be doing this until you have more experience.

After stabilizing the property and confirming its strong rental performance, I refinanced it into a long-term loan.

Without proper permits, there’s a chance the city may request you to revert any non-compliant additions (like the extra bathroom) to align with code standards.When it comes to refinancing, banks tend to look closely at the property’s legal compliance.

I don't think refinancing will make sense here at all, Assuming your property does appraise for $166k, and you take out a loan at 75% LTV, that will give you a loan amount of $124,500Assuming your loan fees are the following: Origination: $2,490Underwriting: $1395Processing: $500Title/Escrow/Other Closing Fees: $1800Prepaids: $1,300Subtracting the payoff + loan fees that would leave you with $17,015 at closing.

@Brody VeilleuxTo maximize returns on multifamily housing, focus on mid-grade updates, amenities, curb appeal, utilities, exploring additional units, creating flexible spaces, and refinancing with a value-add record.