I've helped a few people with considering modular rebuilds in fire areas and there are some modular and manufactured companies that I work with with that have some specialization in the area. - Orbit is one.

I am just starting out so any help will be greatly appreciated!

If you'd like some help with the investment property aspect of this I'd be happy to take a look.

That helps a lot.

I would also pull out enough cash to go and buy more real estate to help increase cash flow.

Thank you for your help.

Setting up a bank account at a local bank or credit union could help grow your business in the future.

I made the mistake of listening to realtors who pushed me towards using Anderson 100 windows on a few for sale projects citing the name recognition will help sales.

A self analysis of these items should help you decide whether it makes sense to proceed with the improvements or if perhaps you are better suited selling the building as-is and re-invest your capital and time into projects that better align with your core competencies. 

BiggerPockets is full of resources designed to help you along your journey, whether you are just getting started or a seasoned investor.