I gave them the option to stay at an increased rent amount starting September 1- just shy of 90 days.

. - Partial Residential - If you plan on renting out bedrooms in your main residence where you live, this is for you.

Do you have the buyers assign the rent to you etc...

Around 17 units all rented.  

We also try to identify hot prospects in areas subject to waitlists for those that intend to personally utilize the property for vacation usages or rent mid term (30+ days) until a permit can be secured.

With this occupancy rate, I will average $18,500 a month in rent netting around 10k a month.   

I wouldn't worry about squatters, it definitely happens, but I don't think Cleveland is uniquely worse than other larger cities, and there's a lot of steps you can take to help prevent this problem if you have a vacant property or something that's getting worked on or you're waiting to rent out.  

If it does not work I will likely try to buy it outright and a bit lower price and use Hard money.... 1 Bed / 2 Bath Condo about 900sq ft - Can NOT rent out unless owned for 3 yearsAsk: $225k (likely will try to contract for $215k) - place is in great shape.

You must collect the rent every month . 

If you choose to invest in a single-family home for rent, consider the local rental market conditions.