I feel that if i start a business i could then earn much money once my business starts to get going and i will have a nice/good engine to provide cash for the real estate  investments.

Hi Christopher,My company does complete architectural plans which are stamped by a state licensed engineer.

Supply shortage, interest rates, population growth, robust economy 

1) look at global trends. example: We're currently seeing a global migration towards warmer/ sunnier climates.2) look for multiple economic engines rather than one or two main industries. example: strong manufacturing, health care, higher education and a tech scene.3) look for communities that are open to adding higher density living near the city centers.

Same thing when some new lender pops up on the mortgage broker search engine thing.

Two structural engineers also gave their professional opinions and weighed out the severity of the situation.

Before i call a foundation engineer i would like to get some some suggestions about whether or not this is a foundation issue.

@Bruce HansenFor regular 1 story home conversions to 2 story.. the architect and structural engineer perhaps would need to assess if the foundation can supported the added weight for the additional.Since you plan to do this for a detached garage I am thinking other factors you may to consider (besides zoning) would be electric, gas?

Does any of the land need some engineering work done for building?

I'm from San Francisco, used to be an engineer, and have only done passive stock market investing up until now.