How to properly finance a duplex?

Milo3, what was there to nitpick about the form now? A cross came again, I didn’t respond to it and nobody missed that either

Of course, I answer professionally and everyone then forms their own opinion, especially the OP and those seeking help.

Here I only expressed what in my opinion is the solution, a conversation with the tax advisor, and that the financing is not chosen based on the developer goes without saying.

Then I will of course not choose this developer!

The financing and its form will certainly not be aligned with the developer, rather the developer will be aligned according to the form of financing, which was of course designed in consultation with the tax advisor.

Well, it is a supplier's market in construction .... you first have to find one who goes along with it. One that also offers a great price-performance ratio. Just saying tax advisor in general

Well, it is a seller's market in construction .... first you had to find one who cooperates. One that also offers great value for money. Just saying "tax advisor" in general is not enough.

In which region is the original poster building? Does he know or perhaps already have a company? Is he equally inflexible in his possibilities?

Costs should be approximately known, then the tax advisor, then the financer, then the tax advisor, then the builder, or architect.