If the tool has merit, then build it for yourself, and it will pay for itself on that basis alone.If it will not pay for itself (& time counts as a cost) when the only customer is yourself, it's probably been done a thousand times, and/or isn't as useful as you think. 

3) Aside from washing the walls or getting a full repaint quoted, would it be reasonable to deduct the expected cost of "Kilz" paint/odor sealant brand for effected square footage?

@Ryan Rabbitt If you don’t get a match then I’d be sure to try to diligently set aside some set amount each paycheck in a separate account specifically for future investments.

I purchase my first property in 2019 in Dayton for $4k with $10k in rehab cost and immediately put it into an LLC.  

Can someone help me analyze this deal: https://doorvest.com/homes/120... through the doorvest platform? 

Be sure to include closing costs, mortgage recording, title insurance, etc.

Separate checking accounts for each business.  

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

Each was paying me more than $18K for their stay so it sounds reasonable that they would want to confirm it is real and I didn't mind.  

There are also additional costs of operating and maintaining an LLC, like separate bank accounts, annual report filings, tax filings, etc.2.