However, once you began stating that the signature was forged and you would be taking legal action, the agents would understandably not engage in that. 

Can anyone suggest training videos, books, or other resources that would help educate me on the topic?

The process and management will take you 1-5 youtube videos to learn about. 

I can't believe anyone would stoop so low as to engage in reverse trolling on these forums.

Any suggestions I should consider before engaging them?

I can send you the video. 

I looked at the GoFundMe page and watched the video.

@Carl Rowles get someone over there to document the damages with a ton of pics AND a narrated video - you may need this for any insurance claim.Regarding your insurance, many of the residential insurers: Allstate, Farmers, State Farm, etc., have a clause that makes your policy invalid if the property is vacant for more than 30 days.- Check with your insurance agent ASAP.You'll need to file a claim and get a claim number.Try to get an insurance adjustor in ASAP, so you can start pumping water out, removing all water damaged drywall and get dehumidifiers in. - Note: the insurance company's adjustor will try to minimize your claim amount.

My CPA provides his clients with a spreadsheet that includes tabs, detailed instructions, and videos on how to use it.

The number of people who have called many of us saying they saw some article online or watched some tickytok video and did something COMPELTELY wrong is staggering.