Good contractors look for a win-win, value mutual respect, take pride in their service and product, and are interested in establishing relationships with customers that will lead to more work.My suggestion?

He claimed there was no mold when he inspected and that the problem must've been recently due to flooding caused by us not putting in a drainage system.

That’s about itI have to buy some tshirt from a vendor to report to my business credit . they do customs stuff too. i was thinking instead of getting a bunch of plain tshirts . i got a "we buy houses" design made and was thinking of just putting them on tshirt hi viz green or orange. i did think man that is tacky but you know what im building my business credit profile (another way of funding) and im doing gorilla marketing tactics at least im trying. and who knows if you make it funny or something you can start a convo that can turn into a LEAD. 

Do not accept anything from organizations that claim they'll pay the tenant's rent for 6 months or 9 months then after that they're on their own.

In some states this can take six months.You can take them to small claims court to get a judgment for the money you're owned. 

If they do not have to claim that purchase. 

You can easily see if their property is still under contract or not.If you dont release the deposit....what will you then do if they dont release the contract on your home and then you cant sell it. ( I dont know Florida custom and law, but in MD/DC the contract needs to be released before you can sell the house to someone else)

If he has a policy that is adequate for the risk, then his policy will be hit first in the event of a claim and yours would be secondary to his policy.Because you are building your rental portfolio, I would seriously consider requiring all your tenants to have a base minimum renters policy.

You then proceed, based on state time lines, if eviction is required.You should not be concerned with your tenants defending themselves with claims you are not maintaining the property.

Most of the free tutorials you can find online are for general use (no specific industry) so you may not see it fit, however, QB can be customized to tailor special industries like REI.