Not piercing my own veil

[Jay Richards]

I have recently begun my journey into investment real estate. Two houses held under seperate LLCs. I am concerned about how I can expense things that were purchased on a personal credit card (building material and hvac work) without putting myself at risk of nullifying my entity later on if I was ever sued. Looking for advice here. Is it possible to fill out an expense report and bill it to the business after the fact? Paying myself back from company funds?

Any advice would be greatly appreciated.