No guaranteed way to stop a determined, experienced thief:(Only deterrents that push them to easier jobs.The roof may be a good idea - until they figure out the just need a ladder to get up there and a rope to lower it down. 

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

When I asked them why they lowered it they stated cause they wanted to lower their exposure to the market.

The market does offer lower priced investment opportunities and higher cashflow returns, with ongoing revitalization projects like the DORA boosting appreciation potential.

(due to the mortgage being in the market being a lot lower than what I pay.)

I'd wait this one out until rates lower and you can refi and learn from it to buy better the next time around. 

I gained equity in the property, and I got higher rents which lowered my living expenses while living there.

Examine the bottom half from every angle - how much you can make, what else you can get for your money (don't worry about how much you make on these, they are time suck and the lower half of your portfolio)That's a good place to start.

I have focused my research on house hacking due to the lower upfront capital requirements with an FHA loan.

That will get you looking at cash flow and end up in a lower rated area than you think.