do you have a lender or are you building out of cash..

And if they are a hobbyist/part-time builder, then they should engage the proper professionals, i.e. a title officer, civil engineer, architect, contractor et al to assist in reviewing the project's feasibility.

I recommend requesting a review or a new appraisal that compares your property to similar multifamily properties in the area to ensure a more accurate valuation.

Quote from @Zach Edelman: Should be a list of Bigger Pockets recommended list of Hard Money Lenders to refer to as well/make the search a bit less overwhelming.  

If you’re a real estate investor looking to scale quickly, portfolio lenders can be an incredible resource.

Quote from @Gavin Wright: Hello fellow Investors,Hope you and your families are all doing well this Holiday Season.Does anyone have a Go-To attorney for contract  review in the greater Savannah GA. area?

Another would be when a lender or bank offers you the cash to buy the home and they cross collateralize one or more homes to bridge the gap of equity needed.

My lender is otherwise ready to close.

Did they require you blueprints and plans be reviewed and made to conform to their standards?

If the lender is licensed in the state you're buying in, then they can do the loan.