They analyze components such as cash flow, principal paydown, appreciation (both home and renovation), initial equity, depreciation, and interest deductions for tax savings, giving you a clear picture of individual gains and ROI over 30 years.

 This individual might have a furnace problem?

For example, one of the lenders I deal with requires at least a 700 score for "rookie" developers with no experience and requires a 25% down payment and charges 13% rate and 2.0% fees.

Yes, because Private Money infers that you are in a negotiable deal where your project can be outside the box and you can negotiate unique terms with a private individual - that - or a big box lender with strict rules and guidelines. 

Ideally, I’d love to integrate an AI chatbot into Zillow to streamline communication.

Furnished Finder is a good idea, even if the fit with travel nurses hasn’t been ideal—it might be worth exploring other platforms for mid-term renters or marketing directly to local families in need of temporary housing.One thought: consider offering seasonal promotions or themed packages to draw in more guests, like holiday stays or discounts for longer weekends.

I have just over $200K left of owner-financing, but I'd like to obtain a cash-out mortgage/loan of $500K (ideally) to be able to pay off the previous owner and make some repairs, etc. 

If they are legit and you don’t have any other offers then I’d have the conversation with them but I’d want a higher than normal down payment (ideally 50% or at least more than the normal 20%), a higher than normal interest rate (at least a point above the prevailing rate so like 9-10% right now, but you can structure it as interest-only payments so their monthly payment is still lower than conventional), amortized over 30 but with a balloon in 3-5 years, something like that.

I started the tax lien foreclosure and the owner redeemed with about 2 weeks to go.You have to look at each county individually to see;Do they sell OTC liens/certificatesIf they do sell OTC, do they sell OTC all year long or only in a special OTC auctionIn Florida, counties that offer OTC certificates, you can earn the full annual 18% (1.5% per month).

I wouldn't say impossible as any individual can loan you money at the end of the day as a private lender, but most lenders won't even go to 0% with experience.