connections to private money that can take my home equity as collateral. ?

It insures the life of the loan By insuring the principal up front with collateral enhancement you eliminate monthly principal payments as your insuring the balance up front. 

I can't imagine a bank would lend without the collateral and a private loan would be expensive.

I have significant IP assets which I might be able to convince a community bank to accept as collateral.

I also am wondering because as far as I know, the seller’s property is used as collateral so if the buyer is unable to fulfill the loan, the seller gets the property back anyways.

The LLC uses these for collateral and get a loan or equity investor.

Homes are appreciating in the area. 2 Story , 3BR 2BA, 2300 sq ftAustin, TX areaComps coming in at about $175-195KRents at about $1550-$1600House needs $14K of foundation repairI estimate another $6-8K for collateral damage and minor repairs to make rent readyFoundation engineer says home is structurally sound and safe to live in, but wouldn't say how long. 

What you are proposing is a mortgage ( a loan with the property as collateral).

Banks do not lend on stock as they are barred from holding stock, if they had to take the collateral they would then be dealing in stock other than their own bank stock.

Here's a high level checklist, assuming you have done all of the important due diligence up front, especially the tax and title review and BK search.Initial StepsBoard the loan to servicingReview the hard copy collateral and make sure everything is there - Original note, assignments, allonges.Record your assignmentIf you don't have a BPO, get one or find a local agent to do a drive by and give you a first hand opinion on value and condition.Contact the BorrowerIf the borrower is in active bankruptcy, the following bullets do not apply.