As Brittany referenced, you do not need a two year history in order to utilize the income in qualifying, in fact you can use the income with no tax filing in certain cases.

To qualify for a loan, focus on having a credit score of at least 620 (or 580 for FHA loans), keeping your total monthly debt under 43% of your income, and saving enough for a down payment and closing costs—about 5-10% of the home's price in total.

If you are looking at FHA because of credit score, then I would work on credit scores to qualify for conventional financing or see if you can get a very strong coborrower with high scores.  

If you're not using Hard Money and the property won't qualify for conventional financing, then you'd probably need to locate private money or if you have friends with IRAs, they can be self-directed to invest in real estate.

These properties can provide cash flow and diversification while qualifying for favorable residential loans.

The goal is to rehab this house then rent it to a qualified tenant until my fathers passing, at that time he has it in the will that the property is to be sold and then the profits are to be divided up between the family. 

You can get into a home for little or even nothing down, perhaps add some value by renovation, then hop to a new primary residence in a year with little or nothing down, and repeat.

., from crypto) by reinvesting the gains into a Qualified Opportunity Fund (QOF) within 180 days.

Also there is no restriction on acquiring conventional loan on primary residence even if you have maxed out on conventional loan for rentals.

Use an agent to help you get qualified tenants and documentation in order.