New apartment construction process

[Ross Sib]

Hi,

I have a basic question on how to go about evaluating responses form architects. I never dealt with architects before. 

I have a 7000 sq.ft. lot with R-3 zoning. So I found an architect from a similar project development that I want to undertake (10x 1BR townhome units).  I just asked the architect to let me know if they can create plans for small apartment complex with 10x units +parking. They responded that the architectural fee for the 10 unit townhome project is $45,000. This is for architectural work only, and does not include the work of the other consultants (structural, mechanical, plumbing, electrical, etc.).

So without having any other information but these several sentences from this architect, what is the best way to evaluate the offer from an architect? I know that the architect is not interested in providing any more details of what they have in mind without knowing that they will be selected for the job. On the other hand, I have no idea if $45k  is a reasonable amount for this work. So this  is like a chicken-egg problem. I would appreciate if anyone can share their experience on dealing with architects on new apartment development. 

Thanks!