I have found a lender who will do a portfolio loan, partial release and no pre-payment penalty for both properties.

I think you have 3 options - Update it to HUD standards, wait for a cash buyer, or use a company like I just found with a search https://www.nhmcinc.com/now-financing-pre-1976-manufactured-...

A buddy and I built software that helps RE pros find and close more off-market properties through real-time, custom intent signals like probates, pre-foreclosures, code violations, and eviction notices.

. - I read Paces' "Wealth Without Cash" and am interested in Pre-Foreclosure opportunities. - Whether it be a house hack (currently live with parents so would prefer to rent out if it is viable i.e. it not being a primary residence) or a sub-to.

I have heard that you can get a list of pre-foreclosure too.

I heard in a podcast that the inventory of homes is back to pre-pandemic levels in some areas and I have noticed more price cuts in general -  but that's mostly the greedy sellers trying to list their homes for way more than the current market value of the home.

Trying to figure out a good ballpark cost for the pre-lim budget.Does anyone have experience building an elevator of this size?

Once you get a pre-approval, you'll know more about your buying power and if it makes sense to house hack. 

I currently have the down payment and had it pre-approve!

Further, how do I demonstrate proof of funds on a HELOC (ie, the equivalent of a pre-approval letter for a loan)?