@Alex LonginidisPrioritize immediate safety and mid-term needs for house repairs and upgrades.

Add outdoor security cameras (just let guests know they’re there) and maybe some motion-sensor lights for extra safety.

Start small, network with other investors, and use tools like BiggerPockets calculators to analyze deals effectively.

Be sure to check out the free tools BP provides to help analyze deals you may have and also market insights.

I'm having a hard time finding any estimating tools for this kind of a project, adding a story and multiple BR/1 BA, and wondered if there were any tools, sites or recommendations any of you have for this kind of a project. 

Be sure to check out the free tools BP provides to help analyze deals you may have and also market insights.

Check county recordsUse online search tools like PropStream, Reonomy, PropertyShark, etc.Use local GIS mapping tools (ask your county)Search online directories for LLC or TrustTalk to neighborsHire a skip tracerSend a letter to the propertyThere are a lot of options.

I'm curious if there are any other marketing tools that have brought about success. 

We think a smartphone app-type, GPS-enabled time tracking tool for tasks and hours would be a good start.

When you see what people do with old space heaters, guards and safety removed, plugging in several in one overloaded extension cors,... you can see where the concern is coming from.