@Davin Manfredi first, regardless of what you do make sure you ask how they are going to run a vent and let them know you have to approve of the work that's going to be done and do quality control afterward.

Anything else is in poor taste in my opinion.

It is extremely difficult and managing all the trades, managing the budget and the schedule to get the project completed on time as the quality level you expect.

I didn't find any challenge finding quality tenants by posting on FB marketplace, roomster, roomies, basically all of the websites. 

However, professional remediation is essential for quality results, complete documentation, and assurance that the job meets industry standards.

You're already thinking about long-term benefits, and it's great that you're bringing your contractor husband's expertise into the equation.To alleviate some of the stress, I recommend starting by focusing on quality properties in solid areas where you can add value.

What if by the time I post there is almost nothing on the market in a comparable location of a comparable quality?

You can use Quickbooks and have an account for each LLC (best quality/ease of use software, but most expensive) or WaveApps.As for CC it is somewhat personal decision.

If you are on a tight budget, a high quality sheet vinyl is also decent.

Of course you have your own guys, so that saves you a lot in labor, as I’m assuming you’re getting decent quality for good prices paying them direct.