I would definitely check Dunn and Bradstreet for any open lines of credit, liens, judgements and the like. 

I have gotten a seller's credit for my 3 existing units but to be conservative, I will assume I am paying full closing costs here.At the moment, I have ~$25k in a HYSA and expect to save another $10k from my W-2 before I start putting offers in.

The one bank left kept a 1 mil line of credit for me ( down from 15 mil) had me  on a 90 day extensions for 4 years and allowed to to earn back in.

I don't think he would allow someone that had to put the fee on a credit card.

As the saying goes and i dont know who is credited for this quote but its very true."

We don't pay vendors by credit card or cashapp because it is far too hard to keep the accounting straight with a high volume of transactions to do that. 

Relatively small amounts of interest income ($1600+ per year) is the highest taxed form of income I have found if you have kids at home.After earning a few grand in interest, It takes away my child tax credits and gives me an effective tax rate of 70%.   

If I have several options, I would prefer a HELOC with no initial draw requirements (i.e. to establish a literal line of credit that I have no specific short term plans to use), i.e. not something like the better.com HELOC. 

Most wholesalers do not have the means to pay their credit card bills not to mention purchase a multimillion-dollar real estate investment.

@Stefano Vrolijk it all depends on your credit history, whether you have an SSN/ ITIN and how much you can put down.