First, verify true market rents per unit and implement legal increases at renewal; consider RUBS to shift utilities.

Purchase the real estate in an LLC to reduce the chances you are personally listed in a claim but most importantly understand the risks most likely to impact your real estate business and take the proactive steps on a daily basis to prevent those liability event from occurring. 

(Amongst other ways to structure).You can always buy them cash but leverage can be an important part of scaling when implemented correctly.

You can still but it and use an FHA 203K to renovate and close but it can take more than 30 day's.In all honesty if you choose a seasoned agent between the realtor and Banker/Loan officer they can do some preventive maintenance to ensure you get your offer approved and the home little to no issues to use FHA and get it closed in 15-20 days. 

I appreciate the reminder to prioritize capital reserves, proper training, and risk management before implementing any creative structures.

I think it is more of a case by case basis and really depends on several things, including:The level of competency to understand and implement the system in house or outsourcedYour timeline and how much effort you're willing to put into itYour budgetYour goalsOther systems you're already using that you may want to integrate withFeatures you may requireSimplicity vs capability, sometimes there are tradeoffs between systemsetc...Depending on a combination of the above as well as many other factors, one solution might lend itself more to your situation than others. 

Quote from @Mike Dymski: Going through the disposal grinds up any food from the dishwasher...and prevents clogged sink backflow into the dishwasher. 

When you have questions feel free to reach out to the experts its better to have the knowledge prior to the mistakes and use preventive maintenance.

There's nothing that prevents you from getting your replacement property under contract before the sale of your old property, and that would certainly help with the identification period instead of starting your search after the fact.

Have they successfully implemented this ?