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. 

Huge hole leaking water into the roof, and more.

Roof repairs, broken this, broken that.

That may increase your cost or limit the coverage you can get.The Year that the following were updated (either partially or fully) would be good to know:- Heating systems- Roof- Plumbing- electricalSome companies will not write properties with systems that have not been updated.As long as you are living there, the proper policy for a 1-4 family is a "Homeowners" policy.

I have two options 6.625% 30 year or 6.15% 15 yearI want to invest aggressively in the near future on more propertiesThe loan is only $110k and the monthly payment for 15 year is $563 and $750I will earn 2-3k a month in gross rental revenueThe property is in a declining population areaRecently rennovated, and all major things were relatively recently improved such as plumbing, the roof, a/c, electric, etc.Will require a lot of management as it is rent by the room so I may switch to a normal rental after 10 yearsI'm trying to find what will mathematically net me the most money in the long run.

I put $6000 into repairs, mostly paint, new light fixtures, new appliances, painting cabinets and fix a small leak coming from the roof.

We have had a pipe burst during the cold winter months, the roof needed to be replaced (thankfully covered by our insurance), and some issues with electrical, which hasn't been majorly updated since it was built in 1973. 

Albany, Syracuse, Utica, OH, PA, etc.) for cashflow.The challenge in these markets is that demand is through the roof, and many properties either sell at the asking price or above the asking price (Suffolk's sale price average was 1.5% ABOVE the asking price).If I were in your shoes, I'd explore local and remote multi-family options before considering the mid-term rental route.All the best!

If you remodeled, added a room, replaced a roof, painted, boosted the curb appeal, etc. that's a different story.

Look for properties with updated roofs, electrical, and plumbing.