I talk to my investors about this pretty often, especially if they're first time investors.

Quote from @Henry Lazerow:My guess is most of the deals selling go to newbies who have no idea what a rehab really costs or that once you open the walls the costs often go up 10's of thousands so you need a solid margin to make money. 

My questions are:- is it worth investing there in terms of the safety of tenants?

To avoid going through the same poor experience, keep reading.Even if someone gives you a referral here, do NOT make the mistake of assuming that the PMC will meet your expectations, just because they met the expectations of the referral source.In our experience, the #1 mistake owners make when selecting a Property Management Company (PMC) is ASSUMING instead of CONFIRMING.It's often a case of not doing enough research, as they don't know what they don't know!

Second most important thing is can they tell me the quality of tenant I will be renting to.

.- Because of these incentives, only integrity and care for one's long-term reputation hold syndicators back from just raising as much as possible, as often as possible, and deploying the capital as fast as possible.

They’ll often have leads on deals before they go public. https://www.biggerpockets.com/business/finder/agentsWith your experience in renovations, you may be able to find value even in these challenging properties.

Gutter Cleaning: Twice a year, normally the tenants responsibility but often overlooked.5.

You can also reach out to wholesalers in your area—they often have established buyers lists.For the contract, a typical timeline for a wholesale deal is 30 to 45 days.

When there's tenants already occupying the property, there's often times different leases that were signed among the tenants.Additionally, renting by room usually sees higher tenant turnover which in turn causes more work for the PM.Other challenges to consider:- Disputes/conflicts among tenants (different personalities if a tenant doesn't know the others prior)- Occupancy limits- Splitting utilities (what if someone uses more water?)