You could offer to back up lease end to April/ May if that works for you.

In addition to your creative financing education, start to include education around scaling your portfolio using the equity in your home.

When purchasing a BRRRR property, it's super likely that at least some of the neighboring homes will be in less-than-ideal condition so you want to give it time for those models to go under some rehab hopefully and appreciate which will help your appraised value at the end of the seasoning period so you can maximize your cash-out.If you have any additional questions - feel free to reach out!

If you have a friend with a real estate license that may be willing to do you a favor, you could ask them for property information that is listed on the MLS which may contain additional information.

In addition, there are alternative rent models (STR, LTR, rent by room, etc) that can create better cash flow than the traditional LTR model.RE also can benefit from value adds.  

He says if I pay him full asking, he would provide me with the 20% down payment since we could avoid realtor fees, and make up the rest by paying full asking (he had it appraised), rather than accepting an offer under asking.

Paid $270K for it initially with my HELOC and used an additional $70K from my HELOC to renovate the property.

I've been in real estate since 2015 and currently offer accounting services to investors.

Seller is an idiot for even accepting your offer.

Some additional thoughts here. 1) In theory, you would refinance after the value-add project is completed and the asset is stabilized.