Additionally, I'm hearing at meetups that this could extend to multi-fam under 4 units as well, although I haven't been able to confirm.I work exclusively with smaller investors in the multi family space and would be happy to chat more about it.

This doesn't replace the need for a MSA that will capture additional clauses needed on a Contractor-SubContractor relationship, this is just a project specific form you would use in addition to the MSA (prepared by your Attorney):This template is for informational purposes only and does not constitute legal advice.

I used the 75% rule on the income and added it and my DTI without the rental goes from 24% to 38%.Or does it just allow me to just take the net profit of that rental and add it to my rental? 

Most likely a "discount listing" Owner pays realtor a small amount upfront to add it to the MLS.

Additionally house tenants bring more of their own appliance, like refrigerator, washer and dryer; which means tenants are responsible for repair and replacement of their own appliances. 

Her husband is also a GC who can help build additional units as needed if you get something that can fit an ADU.

They attract artists, creatives, and people who appreciate a vibrant urban lifestyle.Real Estate Appreciation (Historically): @Dan H. points this out with his bathroom addition.

Additionally, the estimate for my tax preparation for this year was approximately $1,000 over the cost I paid last year (including the time I paid for them to correct their errors).

There had been a recent addition of, call it, Landlord LLC.

(I'm not including expected appreciation in my ROI numbers, I'm just treating that as a bonus).