I've used the strategies others have mentioned with success:Ultrasonic repellant devices (spaced every 20' or so if you can)Bounce fabric softener sheetsSteel wool and/or expanding foam in every crack and crevice that makes sense.If your cleaners aren't arriving right away, you will need someone to do a "check out" procedure after guests leave, to make sure the trash is immediately taken out, and no food of any kind is present, wipe countertops, etc.

It must be done by qualified engineers or architects, CPAs are not qualified as they generally do not have knowledge of construction, construction techniques, design and estimation procedures.

I believe that it is natural to put some leverage on real estate.   

Holes in walls and ceiings are mostly cosmetic in nature.

It probably isn't since condo's by nature make for poor rental investments.

I don't mind putting in the work, but naturally having a 9-6 to be able to feed my family, I don't foresee any brokerage letting me work on weekends or just nights.Is this assumption incorrect? 

Here's my question:  I am an attorney and, by my nature and my profession, am pretty analytical. 

Good day everyone, I hope you had a wonderful weekend.A thought has been running through my mind lately as I have been trying to digest as much information as I can find regarding the due diligence process for commercial multi-family units.I am an engineer by background, and as my wife would point out, by nature I couldn't be anything else.

Some, those that are terrible people by nature, can be extremely venomous.

Seems like natural next step then if you already have multifamilies  :)  Best of luck!!