We might not have all of the answers initially because everyone has to start someplace. We just need to make sure that our clients are getting the best solutions possible. If not from us directly because we haven't acquired the knowledge yet on how to do an assessment, how to interpret what we are observing and translate that into an action plan or proposal for the clients to approve,
As we are working with and engaging our clients - by ourselves or with team members that we assemble and bring to the job - we interact with our clients and let them know how we are going to proceed with the job. If we aren't fully up-to-speed yet, we need to rely more heavily on the experts whom we have brought together and assembled for this type of project.
Regardless of how we choose to approach helping a potential client to make improvements to their home that will allow them to remain living in it long-term, and whatever of professional expertise or specialty happens to be, the client is the ultimate beneficiary of the work we might do. We have to be up to the task. When we aren't because we have more initial enthusiasm than skill and content, selecting the right people to partner with us on an assignment will make all of the difference. The client will get what they need, we will begin establishing a great working partnership with a knowledgeable professional, and we will learn invaluable information about our new field.
The main thing is that the client cannot feel disadvantaged because we contacted them and they choose to work with us. They can't know that we are inexperienced, and we can't fake it because it will soon be obvious that we don't know as much as doing what we are discussing with them.