Based on rough assessment, the following is needed just to get it listed:NeedsLowMidHighRoof$7,747.00$12,580.00$26,037.00Siding$20,000.00$25,000.00$30,000.00Windows$9,000.00$12,000.00$18,000.00New Deck$8,000.00$10,000.00$12,000.00Roof Leak Repair$2,000.00$3,500.00$5,000.00Mold Mitigation$1,000.00$2,500.00$3,500.00AC Units$13,000.00$15,000.00$18,000.00Carpet Replacement$2,500.00$3,500.00$5,000.00Kitchen Remodel$5,000.00$10,000.00$20,000.00Total$68,247.00$94,080.00$137,537.00Due to lack of capital to fund these repairs, I believe the best option is to find an investor looking to flip. 

Eg roof and siding on one, all new paint and countops.

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. 

I hope you or someone is at least keeping an eye on your properties for break ins, squatters, roof leaks, temperature control, frozen pipes (if in cold climate), if you have a basement and sump pump goes out leading to water damage etc.I just talked to two investors in California that have let their properties sit vacant (no mortgages so paying property taxes and insurance).

There are never full photos of the mechanicals and basement and roof line so you will never have even a bare inkling of what the potential repairs will be.

Furnaces break roofs need replaced and plumbing needs repaired.

For the value add we're going to fix up the roads, add a nice sign and fence, replace mailboxes, add lights and fix some plumbing leaks.

Adding a 1/2 bath, new roof, central air or other typical improvements will increase the value of the property. 

It's going to need a new roof here in a few years, and new flooring in both units. 

Right now the only utility at the garage is power so basically I am starting with a frame and a roof.