I believe we are making the right choice by doing legal/fully permitted ADU's.

Additionally, involve a real estate attorney to ensure the transaction aligns with legal requirements and protects both parties’ interests.

For those, each has its own LLC because I need to segregate investors in different properties (in other words, the ownership is different so the entity has to be different) and because our lenders for those size deals require single purpose entities.But if I formed a separate LLC for each of the 700+ properties that I’ve purchased in my career (all of the houses and small multi), I’d need a full-time legal team just to handle entity administration.  

little late to this party, but brokerage doesn't matter.  

.- Once you have a commerical activity license you can finally get your rental licensehttps://www.phila.gov/services/permits-violations-licenses/g...All of the above will be done using the eClipse online portal systemIf your property is built before 1978:The system will kick back your application and you will not be able to get a rental license until you get a Lead Safe test.This is when you will hire a licensed 3rd party to come out and doing a lead test for you.

One thing you might think of doing is having and promoting your own website to avoid the exhorbitant fees charged by the third party sites such as Expedia, Booking.com and Air BnB.  

Legally, I can't rent out the basement as there is no window. 

I love Louis Brown I love William Bronchick JDI've got about $5000 in their coursesVena Jones Cox has awesome videos on illegal wholesaling in OH and how to do it legally

Do the legal Tenant laws of eviction still fall under a room rental?

This provision, through the Affordable Homes Act, make ADUs legal BY RIGHT in any single family zoned property in the state.