They asked me for mortgage satisfaction letter, if dont bring it then i will loose the loan approval 

Chances are if you encounter someone that isn't patient enough to sit with you, learn about your needs and help you develop a plan as you explore multifamily investing you are talking to the wrong broker. 

Just keep prodding & be patient. 

Any ideas or do I just be patient and let the course run?

We were always patient with our negotiations, reasonable to respond, but willing to wait for a good deal.

I will be moving into the San Fernando Valley in a few months, and will either be purchasing my first property, or renting while patiently looking for deals as the pandemic continues.

Be patient and you'll find something that works with you soon enough!

I guess I'm a little more patient in that regard; I don't get frustrated easily; then again, maybe it's because I was an AIT instructor for 6+ years.Anyway,There doesn't seem to be a lot of, if any, court cases to reference on this topic.

He is personable, calm and patient in answering our questions.

I believe the more you know about the sellers situation you'll be able to make a better decision based on the info you've gather.I'm sure there is a way to stucture this deal, a contract is definitely important someone will help you out here in this forum.Be patient for a response.Best wishes!