Also, keep in mind that if you write everything off so your taxes are low, you may not qualify for the next properties due to low income and a debt ratio issue. 

If there was a will, the executor or the power of attorney can just write up a purchase and sale agreement to sell it to you.

Anyways, He ended up writing me a check for $110,000.00 and asked me to come up with the terms that worked for me in the next few days.

Anyways, He ended up writing me a check for $110,000.00 and asked me to come up with the terms that worked for me in the next few days.

If you want to borrow money from your family, figure out the arrangements ahead of time and get it all in writing. 

Write out what you must complete the next day.

Contractor should be licensed (especially for framing, electrical, plumbing, hvac, roof), you should ALWAYS have a contract and bid in writing which details the scope of work, costs, timeline, payment schedule, insurance requirements, disclosures, etc.Why would you return his tools if you have paid him more than the work he has performed?

Anything else I can do besides write It down for an accountant and save receipts.Also, I have an excel sheet of all my expenses that I spent fixing up one of the units.

Get everything in writing signed and initialed.I would not give them a choice.

Clearly write and print exactly what happened and hand that to the police when you file your report.