I know I cannot do it for residential (RESPA), but I wasn't sure about commercial buildings. 

for newbies who are just starting out in REI, is it advisable to start the REI journey from the Mult-Family category of things, or is it a smoother lift cutting your teeth first with single-family residentials?

For more information, contact the Philadelphia Commission on Human Relations or the Fair Housing Commission.Bed bug control responsibilitiesLandlords must develop and follow a bed bug control plan to prevent and control bed bug infestations.You must give tenants:An informational notice from the City of Philadelphia about bed bugs and landlord/tenant responsibilities.A written description of bed bug infestation and remediation in the rental unit within the preceding 120 days and of any ongoing remediation.Within ten business days of receiving a written complaint about bed bugs in a rental unit, you must hire professional pest control services to investigate the complaint and begin remediation if an infestation is found.Remediation services must continue until there is no longer evidence of bed bugs in the unit.

@David Switzer, while I am 100% for staging residential properties and I completely understand your thought process here, the challenge is knowing what use you will be putting in your commercial space.

I've previoulsy focused on flipping houses and residential sales but now that I'm in Florida full time I'm strongly considering starting my own property management company for residential leases.

How about evaluation single family or residential properties?

All residential zones now allow multifamily and townhouse residences by-right.Zoning District Consolidation: Former "Residence A-1, A-2, B, and C" districts have been reclassified under "Residence C-1," which permits multifamily housing.Increased Housing Density: The amendment removes minimum lot area requirements, minimum lot area per dwelling unit, and lot width restrictions, allowing for denser residential development.Reduced Yard Setback Requirements: The minimum required setbacks (front, side, and rear yards) for residential properties have been reduced, allowing for more buildable area on lots.Elimination of Parking Requirements: The amendment removes all minimum parking requirements, reducing the obligation for single-family homeowners to provide off-street parking.Subdivision Flexibility: The definition of "subdivided lot" has been updated, making it easier for homeowners to subdivide their land for townhouse or multifamily development.Height and Floor Area Ratio (FAR) Changes: Floor area ratio (FAR) limitations for residential properties have been removed, and height limits have been increased to permit:Up to four stories in Residence C-1 districts.Up to six stories for inclusionary housing projects on larger lots.Anyone who's familiar with Cambridge knows that this is one of the most prestigious, elite, expensive, restrictive areas in the whole state, and for zoning of this magnitude to be passed is truly historic.

@Terry Kearse while the question is broad, the hurdles are drastically different between residential and commercial projects (I have experience with both).

I am working on a small development where I will sell a handful of residential lots, but I am also allowed to build 6 or so cabins for rentals as part of my farm and agritourism.

I haven't come across too many but it's required along with many other requirements.Lastly, there is a long list of cases that state because the TCPA is penal rather than remedial, your insurance company doesn't have to cover any awards and there is no cap on damages in a class action suit.