We have a new property under contract and are looking for additional likeminded investors to join us.

In addition to the state level Costa Hawkins repeal, there is also a local Rent Control amendment already likely to make the ballot in Sacramento.

I'm planning to add an addition to my house and need a bit of rehabbing completed.

When considering financing options for MFH, in addition to looking at commercial loans, look into portfolio lending.

We ended up putting a clause in the lease that we covered utilities (solid waste, gas, electricity, water, etc), but if any single bill exceeded $200 it would be charged as additional rent that was due with the next months rent.

I would rescind my offer and request some additional terms to the contract. 

I would be informing him that he owes an additional $250 above his $1600 deposit to cover the repairs.

Additionally, there are some good websites where you can pay for credit checks and/or criminal background checks.

Have you tried to obtain an unsecured line of credit with your new business in addition to your loan? 

You can request additional security deposit but new laws affect how long you can keep that, I believe only one year but you will need to independently verify this.