The mortgage market is healthy so there are several ways for income to be calculated including but not limited too: full income verification of two years W-2's or tax returns, 1-2 years of a 1099, average deposits of 12-24 months of personal or (50%) of business bank statements, an up to date P&L, DSCR (debt service coverage ratio) or rental income (investment properties only). - Appraisal.

I called the plumber and he came said there is no problem with the pipe, 300$ for the installation of the washer...Home warranty through Home Depot- came three times and said the rental was not clean and refused to fixed the stove...Not gonna do any business with Home Depot ever again!

Common investment choices include rentals, private placements, tax liens, precious metals, crypto, private businesses, etc. 

Its $2k to start and was wondering if it is worth for them to build the Paydex and build up my business credit. 

He was going on about the anti-tip device that was NOT present on the new range.

More standard income variations are: asset depletion (using reserve distributions as the proposed income) or average personal or business bank statement deposits over a 12-24-36 month period. 

Any tips on how to navigate this?

If you have the cash, proof of funds is easy: Screenshot a bank balance or provide a recent bank statement.If you have a legitimate hard money lender who has underwritten the deal and confirmed you have the down payment and cash to close, they should be able to provide you a letter stating exactly that.If you have neither, then you have no business making an offer in bad faith and trying to tie up the seller's property.Also (and this is crucial and a common rookie mistake) - Don't send a "cash" offer to the title company and then neglect to tell them about your hard money lender.

These are really useful tips joshua.

I own a hard money business and we never ask for payments prior to closing on the loan.